Vishay Vitramon Ceramic Chip Antennas

VISHAY INTERTE C HNO L O G Y , IN C .
INTERACTIVE
data book
Ceramic Chip Antennas
vishay Vitramon
vse-db0113-1009
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One of the World’s Largest Manufacturers of
Discrete Semiconductors and Passive Components
V I S H AY I N T E R T E C H N O L O G Y, I N C .
DATA B O O K
CERAMIC CHIP ANTENNAS
VISHAY VITRAMON
w w w. v i s h a y. c o m
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Vishay Vitramon
Ceramic Chip Antennas
Vishay Electronic GmbH
Geheimrat-Rosenthal-Strasse 100
D-95100 Selb
Germany
Phone: +49 9287 710
Fax: +49 9287 70435
www.vishay.com
DISCLAIMER
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Table of Contents
Vishay Vitramon
Ceramic Chip Antennas
VJ 6040
VJ 6040 UHF Chip Antenna for Mobile Devices....................................................................................................................... 4
VJ 6040 Layout Design Principles............................................................................................................................................ 9
VJ 6040 GSM Interference Immune Tuning Circuit.................................................................................................................. 13
VJ 3505
VJ 3505 UHF Chip Antenna for Mobile Devices....................................................................................................................... 20
VJ 3505 Layout Design Principles............................................................................................................................................ 25
VJ 3505 GSM Interference Immune Tuning Circuit.................................................................................................................. 29
EVALUATION BOARD
EVK 6040 User Guide .............................................................................................................................................................. 37
EVK 3505 User Guide .............................................................................................................................................................. 45
Revision: 05-Jul-10
www.vishay.com
1
Vishay Vitramon
www.vishay.com
2
Contents
VJ 6040 UHF Chip Antenna
for Mobile Devices .............. 4
VJ 6040 Layout Design
Principles .............................. 9
VJ 6040
VJ 6040 GSM Interference
Immune Tuning Circuit ...... 13
VJ 6040
Vishay Vitramon
VJ 6040 UHF Chip Antenna for Mobile Devices
FEATURES
• Small outline (10.5 mm x 15.5 mm x 1.2 mm)
• Omni-directional, linear polarization
• Complies with MBRAI standard
• Complete UHF band coverage (470 MHz to 860 MHz) up
to 1.1 GHz
• Requires a tuning circuit and ground plane for optimal
performance
• Standard SMT assembly
• 50 Ω unbalanced interface
The company’s products are covered by one or more of the
following:
WO2008250262 (A1), US2008303720 (A1),
US2008305750 (A1), WO2008154173 (A1).
Other patents pending.
• Operating temperature range (- 40 °C to + 85 °C)
DESCRIPTION
APPLICATIONS
The VJ 6040 multi-layer ceramic chip antenna is a small
form-factor, high-performance, chip-antenna designed for
TV reception in mobile devices in the UHF band. It allows
mobile TV device manufacturers to design high quality
products that do not bear the penalty of a large external
antenna. Utilizing Vishay's unique materials and
manufacturing technologies, this product complies with the
MBRAI standard while maintaining a small outline.
Focusing on consumer applications, the antenna is designed
to be assembled onto a PC board in the standard reflow
process.
• Mobile UHF TV receivers including DVB-T, DVB-H,
ISDB-T, CMMB, ATSC, and MediaFLO devices
Target customers of the VJ 6040 are mobile phone makers,
portable multimedia device makers, notebook OEMs and
ODMs, and accessory card OEMs and ODMs.
The VJ 6040 is the first of a family of products developed by
Vishay, a world leader in manufacturing of discrete and
passive components.
• Reference design and evaluation boards available upon
request
• Compliant to RoHS directive 2002/95/EC
ANTENNA PERFORMANCE
Peak gain
The antenna radiation characteristics are influenced by
several factors including ground plane dimensions and
impedance matching network.
The antenna parameters presented hereafter were
measured according to the configuration suggested by the
VJ 6040 evaluation board, utilizing its four channel active
digital tuning circuit. The evaluation board ground plane is
40 mm by 80 mm large.
Figure 1 shows peak gain over frequency throughout the
UHF band, compared with the MBRAI requirements.
0
Peak Gain (dBi)
-2
Measured
-4
Simulated
-6
Standard
-8
- 10
- 12
450
500
550
600 650 700 750
Frequency (MHz)
800
850 900
Fig. 1 - Peak Gain vs. Frequency
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4
For technical questions, contact: [email protected]
Document Number: 45157
Revision: 15-Jun-10
VJ 6040
VJ 6040 UHF Chip Antenna for Mobile Devices
Vishay Vitramon
Figure 2 displays the measured and simulated radiation efficiency of VJ 6040 over frequency.
40
35
Simulated value
Efficiency (%)
30
25
Measured value
20
15
10
5
0
460
510
560
610 660 710
Frequency (MHz)
760
810
860
Fig. 2 - Radiation Efficiency vs. Frequency
Applications that do not require full coverage of the UHF band can gain an additional two to three dBi by removing the tuning
circuit. In this case the antenna can be fixed to any 150 MHz band within the UHF range.
RADIATION PATTERN
The 3D planes of VJ 6040 are defined in figure 3.
Z
X
Y
Fig. 3 - VJ 6040 3D Plane Definition
Document Number: 45157
Revision: 15-Jun-10
For technical questions, contact: [email protected]
www.vishay.com
5
VJ 6040
VJ 6040 UHF Chip Antenna for Mobile Devices
Vishay Vitramon
Figure 4. displays the simulated 3D radiation pattern at 650 MHz.
Fig. 4 - Simulated Radiation Pattern
Figure 5. displays the measured radiation patterns of VJ 6040 evaluation board in the YZ plane as defined in figure 3. Zero
degrees is defined at the Z axis, stepping counter clockwise.
500 MHz - Gain (dBi) vs. Angle (°)
0
30
18 12
24
60
342
-5
36
336
330
- 15
48
54
60
- 20
- 25
66
18 12
60
354 348
342
336
-5
- 10
42
330
324
318
312
306
300
- 15
48
54
60
288
- 35
24
36
294
- 30
72
30
324
318
312
306
300
- 10
42
600 MHz - Gain (dBi) vs. Angle (°)
0
354 348
- 20
- 25
66
294
- 30
72
288
- 35
78
- 40
282
78
- 40
282
84
- 45
- 50
276
84
- 45
276
270
90
- 50
96
264
96
102
258
102
90
252
108
246
114
120
126
132
138
144
150
156
162 168
174
180
186 192
204
198
258
108
252
114
240
234
228
222
216
210
246
240
234
120
126
228
222
216
132
138
144
150
156
700 MHz - Gain (dBi) vs. Angle (°)
162 168
174 180 186 192
30
36
42
24
0
354 348
342
6
0
-5
336
- 10
- 15
- 20
48
54
60
- 25
66
78
30
330
324
318
312
306
300
24
18 12
204
210
54
- 45
- 50
330
324
318
312
306
- 20
60
282
336
- 15
48
- 40
354 348
342
- 10
42
288
60
-5
36
294
- 30
- 35
72
198
800 MHz - Gain (dBi) vs. Angle (°)
0
18 12
270
264
300
- 25
66
294
- 30
72
288
- 35
78
- 40
282
276
84
- 45
276
270
90
- 50G
96
264
96
102
258
102
84
90
108
252
114
246
240
120
126
132
138
144
150
156 162
168 174
180
198
186 192
204
234
228
222
216
210
270
264
258
108
252
114
246
120
240
234
228
222
216
126
132
138
144
150
156
162 168
174 180 186
192
198
204
210
Fig. 5 - Measured Radiation Pattern
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For technical questions, contact: [email protected]
Document Number: 45157
Revision: 15-Jun-10
VJ 6040
VJ 6040 UHF Chip Antenna for Mobile Devices
Vishay Vitramon
FOOTPRINT AND MECHANICAL DIMENSIONS
The antenna footprint and mechanical dimensions are presented in figure 6. For mechanical support, it is recommended to add
one or two drops of heat curing epoxy glue. The glue dot should not overlap with any of the soldering pads. It is recommended
to apply the glue dot at the center of the antenna, as shown by the diagonal pattern. For more details see “VJ 6040 Assembly
Guidelines” section below.
0.5
0.35
3.6
1.0
0.35
0.5
3.6
4.6
1.0
`
0.35
0.35
1.0
4.65
0.5
Glue dot area
4.65
1.0
0.35
0.35
1.0
All dimensions in mm
Figure not in scale
RF feed connects here
Fig. 6 - VJ 6040 Footprint
VJ 6040 ASSEMBLY GUIDELINES
1. Mounting of antennas on a printed circuit board should be done by reflow soldering. The reflow soldering profiles are shown
below.
2. In order to provide the adequate strength between the antenna and the PCB the application of a dot of heat cured epoxy glue
in the center of the footprint of the antenna prior to the antenna’s soldering to the board should be done. An example for such
glue could be Heraeus PD 860002 SA. The weight of the dot should be 5 mg to 10 mg.
300
T
(°C)
Max. temperature
250
> 215 °C: 20 s to 40 s
200
150
Min. temperature
100
Sn-Pb eutectic solder paste
50
0
30 s to 60 s
30 s to 60 s
30 s to 60 s
Time
Fig. 7 - Soldering IR Reflow with SnPb Solder
Document Number: 45157
Revision: 15-Jun-10
For technical questions, contact: [email protected]
www.vishay.com
7
VJ 6040
VJ 6040 UHF Chip Antenna for Mobile Devices
Vishay Vitramon
300
T
(°C)
250
10 s
260 °C
˜ 245 °C
10 s
215 °C
200
40 s
180 °C
150
130 °C
100
2 K/s
50
0
50
100
150
200
t (s) 250
Fig. 8 - Soldering Reflow with Sn Solder
300
T
(°C)
250
200
Max. temperature
Sn-Ag-Cu solder paste
150
Min. temperature
100
50
0
60 s to 120 s
60 s to 120 s
30 s to 60 s
60 s to 120 s
Time
Fig. 9 - Soldering IR Reflow with SnAgCu Solder
ORDERING INFORMATION
VISHAY MATERIAL
PACKAGING QUANTITY
VJ 6040
VJ6040M011SXISRA0
1000 pieces
www.vishay.com
8
For technical questions, contact: [email protected]
Document Number: 45157
Revision: 15-Jun-10
VISHAY VITRAMON
Ceramic Chip Antenna
Application Note
VJ 6040 Layout Design Principles
LAYOUT DESIGN PRINCIPLES FOR VJ 6040
UHF ANTENNA
ANTENNA ENVIRONMENT
VJ 6040 is a multi-layer ceramic chip antenna designed for
receiving mobile digital TV transmissions in the UHF band.
VJ 6040, like any other antenna, will be affected by any
nearby conducting element.
The most challenging target application for the VJ 6040
antenna is the cellular phone. For this reason the following
document offers design principles that will allow best
performance of the VJ 6040 antenna, while maintaining a
form factor suitable for most cellular phone designs.
This effect can be helpful, as in the case of the ground plane.
However, it can also be harmful.
To help in the design-in process, Vishay offers an antenna
evaluation kit designed according to the principles described
hereafter. The evaluation kit allows designers to test the
antenna performance. The evaluation kit measures 40 mm
by 90 mm and includes the following:
• VJ 6040 antenna mounted against a 40 mm by 80 mm
ground plane
• Active digital tuning circuit controlled by two input lines
allowing full coverage of the UHF band 470 to 860 (MHz)
• 50 W SMA termination
Applications that allow larger ground planes can enjoy
improved antenna efficiency.
For any technical support please contact: [email protected]
General
When the application is being designed, it is crucial to
maximize the benefits offered by correct implementation of
the ground plane and minimize the potentially harmful effects
of other conduction components.
All cellular applications include at least a single antenna
designed for the cellular network itself. Because VJ 6040 is
similar to most of these antennas, the same design
considerations can be applied to both antennas. For this
reason we recommend positioning VJ 6040 close to the
cellular antenna. By doing so we can achieve the following
goals:
• Both antennas will benefit from the same ground plane
• No additional real estate will be required. Both antennas
will use the same ground clearance
• Both antennas will enjoy favorable positioning away from
the user’s hand and other potentially harmful elements
such as battery, connectors, buttons etc.
• The cellular antenna can be easily customized to perform
well in the presence of VJ 6040
• VJ 6040 will not be significantly affected by the presence
of the cellular antenna, provided a minimal gap between it
and the neighboring antenna will be kept
Ground Plane Configuration
Figure 1 describes two recommended reference ground
plane configurations.
Document Number: 45129
Revision: 18-Jun-10
For technical questions, contact: [email protected]
www.vishay.com
9
APPLICATION NOTE
VJ 6040 evaluation kit demonstrates exceptional antenna
performance achieved with a 40 mm by 80 mm ground plane.
Applications that allow an increase in the overall dimensions
of the ground plane will enjoy improved efficiency.
Application Note
Vishay Vitramon
VJ 6040 Layout Design Principles
40 mm
40 mm
10 mm
10 mm
10 mm
10.5
mm 6
10.5
mm
V IS HAY
VJ 6040
VISHAY
VJ 6040
mm
50 W
10.5 mm
3 mm
3 mm
50 W
15.5 mm
15.5 mm
15.5 mm
VISHAY
VJ 6040
3
mm
RF Feed
RF Feed
50 O hm
80 mm
80 mm
Minimal ground
plane for
EMBRI
compliance
Enhanced
performance
configuration
RF Feed
Legend:
Ground plane on top, bottom and inner layers
Legend:
Ground plane on top, bottom and/or inner layers.
Copper free area on all layers
Copper free area on all layers. Discrete component
are allowed
APPLICATION NOTE
VISHAY
VJ 6040
VJ 6040 Multi-layer chip antenna
Copper and component free area on all layers
Fig. 1 - Recommended Ground Plane Configurations
Fig. 2 - Component Free Area Description
The design on the left describes the minimal area required to
allow VJ 6040 to comply with the EMBRI standard. This
configuration is used by the VJ 6040 evaluation kit. The
design on the right describes how to increase the antenna
efficiency by approximately 2 dB by enlarging the antenna
clearance. Note that antenna tuning will shift up in frequency
as antenna clearance increases. This shift should be
corrected by modifying the tuning circuit values.
The areas marked in green are less sensitive to the presence
of conducting bodies than the areas marked by the diagonal
pattern. In cases where the ground clearance must be
utilized, it is recommended positioning small discrete
components in these areas. The discrete components
should be connected using the thinnest wires possible. Large
conducting components such as batteries, connectors or
buttons should be avoided.
Applications that can support ground planes larger than
80 mm will also benefit from improved antenna parameters.
The areas closest to the antenna, marked by the diagonal
pattern, are sensitive to the presence of any conducting
body. Violating this clearance might result in antenna
detuning or loss of radiation efficiency.
For best antenna performance, it is recommended to keep
the copper free area, marked in green, free of any conducting
elements such as SMT components, connectors, batteries,
wires etc. Applications that cannot comply with this
recommendation, due to insufficient space, should follow the
guidelines presented in figure 2.
In cases where the antenna clearance is shared by both
VJ 6040 and an additional antenna, it is recommended to
maintain maximum distance between the antennas. Most
cellular antennas are mounted on a plastic carrier and are
not soldered directly to the main PCB. In these cases, the
plastic carrier can be designed to meet the recommended
clearance as described above.
Technical support for antenna integration is provided by
Vishay Vitramon division.
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10
For technical questions, contact: [email protected]
Document Number: 45129
Revision: 18-Jun-10
Application Note
Vishay Vitramon
VJ 6040 Layout Design Principles
Z AXIS DESIGN PRINCIPLES
The following section deals with the recommended
clearance required by VJ 6040 in the Z axis. As in the case
of the PCB clearance, the area closest to the antenna is
sensitive to the presence of any conducting materials. The
following figure provides recommendations for the clearance
required in elevation:
10 mm
15.5 mm
Plastic housing materials, or any other non-conducting
materials, will have negligible effect on the antenna provided
that they do not physically touch it. A distance greater than
1 mm should be maintained between the plastic housing and
the antenna.
10 mm
10 mm
10 mm
Legend:
FR4 PCB
Copper and component free area on all layers
Fig. 3 - Side View of Antenna Assembled on PCB
Features are subject to revisions or changes without notification
The company’s products are covered by one or more of the following:
WO2008250262 (A1), US2008303720 (A1), US2008305750 (A1), WO2008154173 (A1). Other patents pending.
ORDERING INFORMATION
VISHAY MATERIAL
PACKAGING QUANTITY
VJ 6040
VJ6040M011SXISRA0
1000 pieces
For technical questions, contact: [email protected]
www.vishay.com
11
APPLICATION NOTE
Document Number: 45129
Revision: 18-Jun-10
Vishay Vitramon
www.vishay.com
12
VISHAY VITRAMON
Ceramic Chip Antenna
Application Note
VJ 6040 GSM Interference Immune Tuning Circuit
VJ 6040 GSM INTERFERENCE IMMUNE
TUNING CIRCUIT
GSM Antenna
VJ 6040
VJ 6040 is a narrow band antenna that requires an active
digital tuning circuit to allow it to cover the UHF band which
spans between 470 MHz and 860 MHz. The tuning circuit
typology is designed to withstand external interference such
as GSM transmission.
Tuning
Circuit
GSM
Connector
Port 1
Vishay offers an evaluation kit fitted with the GSM immune
tuning circuit and the VJ 6040 miniature UHF antenna to
allow designers to measure the antenna parameters.
UHF
Connector
For any technical support please contact: [email protected]
Port 2
Nevertheless, in cases where the GSM transmitter is in close
proximity to VJ 6040, the tuning circuit typology should be
modified to eliminate the risk of antenna detuning. The
following document describes in detail the GSM interference
immune tuning circuit.
CHOOSING THE CORRECT TUNING CIRCUIT
Vishay Vitramon division provides two tuning circuit
reference designs:
Network Analyzer
S12
• Standard tuning circuit - described in detail in a separate
application note titled “EVK 6040 User Guide”
Fig. 1 - Test Setup
• GSM immune tuning circuit - described hereafter
The standard typology enables excellent antenna
performance while maintaining minimal cost. However, the
standard tuning circuit can withstand GSM interference up to
0 dBm, measured at the VJ 6040 antenna feed. The power
received by VJ 6040 can be estimated using the test setup
described in figure 1.
Once the coupling factor is measured, the received power at
the VJ 6040 feed can be estimated as follows:
Received Power = Transmitted Power + Coupling Factor
Example:
If the GSM peak power output is + 33 dBm and the coupling
factor was found to be - 15 dB then the maximum received
power would be + 18 dBm.
The GSM immune tuning circuit should be used in cases
where the peak received power is greater than 0 dBm.
Document Number: 45155
Revision: 07-Jul-10
For technical questions, contact: [email protected]
www.vishay.com
13
APPLICATION NOTE
A test PCB should be designed to accommodate both
VJ 6040 and the GSM antennas. The two antennas should
be positioned as far from each other as allowed by the
mechanical constraints of the application. Using a network
analyzer, the coupling between the antennas can be directly
measured for each of the four channels offered by the tuning
circuit. The same test setup can later be used to fine tune the
tuning element components to negate any detuning caused
by the GSM antenna, or other nearby components.
Application Note
Vishay Vitramon
VJ 6040 GSM Interference Immune Tuning Circuit
GSM IMMUNE TUNING CIRCUIT TYPOLOGY
Figure 2 presents the schematic drawing of the recommended tuning circuit.
Schematics
VJ 6040
L1
R1
L4
D1
Digital input 1
L2
C3
R2
L5
L3
D2
Digital input 2
C4
R3
C1
L6
C2
50 Ω RF
feed
APPLICATION NOTE
Fig. 2 - Tuning Circuit Schematics
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For technical questions, contact: [email protected]
Document Number: 45155
Revision: 07-Jul-10
Application Note
Vishay Vitramon
VJ 6040 GSM Interference Immune Tuning Circuit
LAYOUT
Figure 3 shows the recommended layout of the tuning circuit. Layout should be as compact as possible.
VISHAY
VJ 6040
L1
Digital input 1
R1
L4
L2
D1
D2
L5
R2
Digital input 2
L3
C3
C4
R3
L6
C1
L4
C2
50 W line
Ground plane copper area on top, bottom and/or inner layers
Conducting strip lines
0402 component
Via hole to ground plane
Fig. 3 - Tuning Circuit Layout
Document Number: 45155
Revision: 07-Jul-10
For technical questions, contact: [email protected]
www.vishay.com
15
APPLICATION NOTE
Legend
Application Note
Vishay Vitramon
VJ 6040 GSM Interference Immune Tuning Circuit
LAYOUT GUIDELINES
1. The distance between the tuning circuit components should be minimized
2. Inductor L1 should be located as close as possible to the antenna
3. Inductors L4 and L5 should be as close as possible to the PIN diodes
4. It is recommended to remove all ground planes from under the tuning circuit. The ground plane should be added to insure a
50 Ω wave guide after capacitor C1
REFERENCE TUNING CIRCUIT BOM
TABLE 1 - TUNING CIRCUIT BILL OF MATERIALS
VALUE
REFERENCE
QUANTITY PER CIRCUIT
PART NUMBER
MANUFACTURER
120 nH
L4, L5, L6
3
HK 1005 R12J-T
Taiyo Yuden
D1, D2
2
BAR63-05W
Infineon
39 nH
L1
1
IMC0402ER39NJ
Vishay
22 nH
L2
1
IMC0402ER22NJ
Vishay
27 nH
L3
1
IMC0402ER27NJ
Vishay
3.9 pF
C1
1
VJ0402A3R9BXACW1BC
Vishay
220 pF
C2, C3, C4
3
VJ0402A221JXACW1BC
Vishay
330 Ω
R1, R2, R3
3
CRCW0402330RFKED
Vishay
PIN diode
Note
• Any changes made in the reference BOM might result in loss of radiation efficiency.
CONTROL SIGNAL INTEGRITY
The following table describes the desired control signal properties:
TABLE 2 - SIGNAL INTEGRITY FOR ELECTRICAL CONTROL ALTERNATIVE
Parameter
SYMBOL
MIN.
TYP.
MAX.
UNITS
COMMENTS
Equivalent DC circuit
VCC
Logical LOW
Vil
- 0.3
0
0.2
V
APPLICATION NOTE
Equivalent DC circuit
VCC
Logical HIGH
Source current
Sink current
www.vishay.com
16
Vih
2
3
5
V
Isource
0
0.01
0.05
mA
Vin = 5 V
Diode reverse leakage current
Isink
4
4.2
5
mA
Vin = - 0.3 V
For technical questions, contact: [email protected]
Document Number: 45155
Revision: 07-Jul-10
Application Note
Vishay Vitramon
VJ 6040 GSM Interference Immune Tuning Circuit
CHANNEL CHARACTERISTICS
The two digital control lines offer four frequency channels as described in table 3 below. This table shows the typical peak gain
obtained in each of the four channels.
TABLE 3 - PEAK GAIN OBTAINED IN EACH OF THE FOUR CHANNELS
PARAMETER
D1
D2
BAND (MHz)
S11 (dB)
460
5
560
660
760
860
760
860
760
860
760
860
0
-5
1
H
H
470 to 540
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
2
L
H
540 to 620
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
3
H
L
620 to 750
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
4
L
L
750 to 860 (1)
- 10
- 15
- 25
f (MHz)
Note
(1) Applications withstanding strong GSM interference will incorporate a band pass filter designed to filter out the interfering signal. Such a filter
will add significant attenuation above 750 MHz.
The company’s products are covered by one or more of the following:
WO2008250262 (A1), US2008303720 (A1), US2008305750 (A1), WO2008154173 (A1). Other patents pending.
ORDERING INFORMATION
VISHAY MATERIAL
PACKAGING QUANTITY
VJ 6040
VJ6040M011SXISRA0
1000 pieces
Document Number: 45155
Revision: 07-Jul-10
For technical questions, contact: [email protected]
www.vishay.com
17
APPLICATION NOTE
- 20
Vishay Vitramon
www.vishay.com
18
Contents
VJ 3505 UHF Chip Antenna
for Mobile Devices .............. 20
VJ 3505 Layout Design
Principles .............................. 25
VJ 3505
VJ 3505 GSM Interference
Immune Tuning Circuit ...... 29
VJ 3505
Vishay Vitramon
VJ 3505 UHF Chip Antenna for Mobile Devices
FEATURES
•
•
•
•
•
The company’s products are covered by one or more of the
following:
WO2008250262 (A1), US2008303720 (A1),
US2008305750 (A1), WO2008154173 (A1).
Other patents pending.
•
•
•
Small outline (35 mm x 5 mm x 1.2 mm)
Omni-directional, linear polarization
Complies with MBRAI standard
Complete UHF band coverage (470 MHz to 860 MHz) up
to 1.1 GHz
Requires a tuning circuit and ground plane for optimal
performance
Standard SMT assembly
50 Ω unbalanced interface
Operating temperature range (- 40 °C to + 85 °C)
• Reference design and evaluation boards available upon
request
• Compliant to RoHS directive 2002/95/EC
APPLICATIONS
DESCRIPTION
The VJ 3505 multi-layer ceramic chip antenna is a small
form-factor, high-performance, chip-antenna designed for
TV reception in mobile devices in the UHF band. It allows
mobile TV device manufacturers to design high quality
products that do not bear the penalty of a large external
antenna. Utilizing Vishay's unique materials and
manufacturing technologies, this product complies with the
MBRAI standard while maintaining a small outline.
Focusing on consumer applications, the antenna is designed
to be assembled onto a PC board in the standard reflow
process.
Target customers of the VJ 3505 are mobile phone makers,
portable multimedia device makers, notebook OEMs and
ODMs, and accessory card OEMs and ODMs.
2
ANTENNA PERFORMANCE
Peak gain and efficiency
The antenna radiation characteristics are influenced by
several factors including ground plane dimensions and
impedance matching network.
The antenna parameters presented hereafter were
simulated according to the ground plane configuration
suggested by the VJ 3505 evaluation board.
Figure 1. shows simulated peak gain and radiation efficiency
over frequency throughout the UHF band, compared with the
MBRAI requirements.
VJ 3505 Simulated Antenna Parameters
0
Radiation Efficiency (dB)
• Mobile UHF TV receivers including DVB-T, DVB-H,
ISDB-T, CMMB, ATSC, and MediaFLO devices
Peak Gain
-2
Radiation
Efficiency
-4
-6
MBRAI
-8
- 10
- 12
470
520
570
620 670 720
Frequency (MHz)
770
820
870
Fig. 1 - Peak Gain and Efficiency vs. Frequency
www.vishay.com
20
For technical questions, contact: [email protected]
Document Number: 45158
Revision: 26-Aug-10
VJ 3505
VJ 3505 UHF Chip Antenna for Mobile Devices
Vishay Vitramon
RADIATION PATTERN
The 3D planes of VJ 3505 are defined in figure 2.
Z
Y
X
Fig. 2 - VJ 3505 3D Plane Definition
Figure 3. displays the simulated 3D radiation pattern at 550 MHz. The general pattern shape does not change with frequency.
Fig. 3 - Simulated Radiation Pattern at 550 MHz
Document Number: 45158
Revision: 26-Aug-10
For technical questions, contact: [email protected]
www.vishay.com
21
VJ 3505
VJ 3505 UHF Chip Antenna for Mobile Devices
Vishay Vitramon
Fig. 4 displays the measured radiation patterns of VJ 3505 evaluation board in the YZ plane as defined in Fig. 2. Zero degrees
is defined at the Z axis, stepping clockwise.
500 MHz - Gain (dBi) vs. Angle (°)
0
330
30
- 10
- 20
300
600 MHz - Gain (dBi) vs. Angle (°)
0
330
30
- 10
60
- 20
300
- 40
- 40
- 50
270
60
- 30
- 30
120
150
210
90
240
120
240
- 50
270
90
150
210
180
180
700 MHz - Gain (dBi) vs. Angle (°)
0
330
30
- 10
862 MHz - Gain (dBi) vs. Angle (°)
0
330
30
- 10
- 20
300
60
- 20
300
- 30
- 40
- 40
- 50
270
60
- 30
120
240
- 50
270
90
120
240
150
210
90
150
210
180
180
Fig. 4 - Measured Radiation Pattern
FOOTPRINT AND MECHANICAL DIMENSIONS
The antenna footprint and mechanical dimensions are presented in figure 5. For mechanical support, it is recommended to add
one or two drops of heat curing epoxy glue. The glue dot should not overlap with any of the soldering pads. It is recommended
to apply the glue dot at the center of the antenna, as shown by the diagonal pattern. For more details see “VJ 3505 assembly
guidelines” section below.
0.25
0.25
4.5
1
1
1
9
9
9
1
0.25
5
Apply glue in this area
0.25
1
35
RF feed connects here
All dimensions in mm
Figure not in scale
Fig. 5 - VJ 3505 Footprint
www.vishay.com
22
DIMENSIONS
(mm)
Length
35 + 0.5/-0
Width
5 + 0.5/-0
Height
1.2 ± 0.1
For technical questions, contact: [email protected]
Document Number: 45158
Revision: 26-Aug-10
VJ 3505
VJ 3505 UHF Chip Antenna for Mobile Devices
Vishay Vitramon
VJ 3505 ASSEMBLY GUIDELINES
1. Mounting of antennas on a printed circuit board should be done by reflow soldering. The reflow soldering profiles are shown
below.
2. In order to provide the adequate strength between the antenna and the PCB the application of a dot of heat cured epoxy glue
in the center of the footprint of the antenna prior to the antenna’s soldering to the board should be done. An example for such
glue could be Heraeus PD 860002 SA. The weight of the dot should be 5 mg to 10 mg.
300
T
(°C)
Max. temperature
250
> 215 °C: 20 s to 40 s
200
150
Min. temperature
100
Sn-Pb eutectic solder paste
50
0
30 s to 60 s
30 s to 60 s
30 s to 60 s
Time
Fig. 6 - Soldering IR Reflow with SnPb Solder
300
T
(°C)
250
10 s
260 °C
˜ 245 °C
215 °C
200
180 °C
150
10 s
40 s
130 °C
100
2 K/s
50
0
50
100
150
200
t (s)
250
Fig. 7 - Soldering Reflow with Sn Solder
Document Number: 45158
Revision: 26-Aug-10
For technical questions, contact: [email protected]
www.vishay.com
23
VJ 3505
VJ 3505 UHF Chip Antenna for Mobile Devices
Vishay Vitramon
300
T
(°C)
250
200
Max. temperature
Sn-Ag-Cu solder paste
150
Min. temperature
100
50
0
30 s to 60 s
60 s to 120 s
60 s to 120 s
Time
60 s to 120 s
Fig. 8 - Soldering IR Reflow with SnAgCu Solder
ORDERING INFORMATION
VISHAY MATERIAL
PACKAGING QUANTITY
VJ 3505
VJ3505M011SXMSRA0
1000 pieces
www.vishay.com
24
For technical questions, contact: [email protected]
Document Number: 45158
Revision: 26-Aug-10
VISHAY VITRAMON
Ceramic Chip Antenna
Application Note
VJ 3505 Layout Design Principles
LAYOUT DESIGN PRINCIPLES FOR VJ 3505
UHF ANTENNA
ANTENNA ENVIRONMENT
VJ 3505 is a multilayer ceramic chip antenna designed for
receiving mobile digital TV transmissions in the UHF band.
VJ 3505, like any other antenna, will be affected by any
nearby conducting element.
The most challenging target application for the VJ 3505
antenna is the cellular phone. For this reason the following
document offers design principles that will allow best
performance of the VJ 3505 antenna, while maintaining a
form factor suitable for most cellular phone designs.
This effect can be helpful, as in the case of the ground plane.
However, it can also be harmful.
To help in the design-in process, Vishay offers an antenna
evaluation kit designed according to the principles described
hereafter. The evaluation kit allows designers to test the
antenna performance. The evaluation kit measures 40 mm
by 100 mm and includes the following:
• VJ 3505 antenna mounted against a 40 mm by 85 mm
ground plane
• Active digital tuning circuit controlled by two input lines
allowing full coverage of the UHF band 470 MHz to
860 MHz
• 50 W SMA termination
Applications that allow larger ground planes can enjoy
improved antenna efficiency.
We encourage our consumers to take advantage of the
technical support offered by Vishay Vitramon division.
For any technical support please contact: [email protected]
When the application is being designed, it is crucial to
maximize the benefits offered by correct implementation of
the ground plane and minimize the potentially harmful effects
of other conduction components.
All cellular applications include at least a single antenna
designed for the cellular network itself. Because VJ 3505 is
similar to most of these antennas, the same design
considerations can be applied to both antennas. For this
reason we recommend positioning VJ 3505 close to the
cellular antenna. By doing so we can achieve the following
goals:
• Both antennas will benefit from the same ground plane
• No additional real estate will be required. Both antennas
will use the same ground clearance
• Both antennas will enjoy favorable positioning away from
the user’s hand and other potentially harmful elements
such as battery, connectors, buttons etc.
• The cellular antenna can be easily customized to perform
well in the presence of VJ 3505
• VJ 3505 will not be significantly affected by the presence
of the cellular antenna, provided a minimal gap between it
and the neighboring antenna will be kept
For technical questions, contact: [email protected]
www.vishay.com
25
APPLICATION NOTE
Document Number: 45187
Revision: 18-Jun-10
General
Application Note
Vishay Vitramon
VJ 3505 Layout Design Principles
GROUND PLANE CONFIGURATION
10 mm
35 mm
10 mm
10 mm
VJ 3505 evaluation kit demonstrates exceptional antenna
performance achieved with a 40 mm by 80 mm ground plane.
Applications that allow an increase in the overall dimensions
of the ground plane will enjoy improved efficiency.
Figure 1 describes two recommended reference ground
plane configurations.
8 mm
VJ 3505
7 mm
Tuning
circuit
40
5
35
VJ 3505
30 mm
50 Ω
10
7
Tuning
circuit
50 Ω
30
RF Feed
RF feed
85
Legend:
Required ground plane on top, bottom and/or inner layers.
Populating this area with copper and/or components is optional.
Minimal antenna degraedation expected.
Minimal ground
plane for MBRAI
compliance
Copper and component free area on all layers
Legend:
Ground plane on top, bottom and inner layers
Copper free area on all layers
VJ 3505
VJ 3505 multilayer chip antenna
APPLICATION NOTE
Fig. 1 - Recommended Ground Plane Configurations
all Dimensions in mm
The recommended design describes the minimal area
required to allow VJ 3505 to comply with the MBRAI
standard. This configuration is used by the VJ 3505
evaluation kit.
Applications that can support ground planes larger than
80 mm will also benefit from improved antenna parameters.
Improved antenna performance can be obtained by
increasing the ground clearance. A clearance of 10 mm from
the antenna will result in optimal performance.
Fig. 2 - Component Free Area Description
The area marked by the crisscross pattern is less sensitive
to the presence of conducting bodies than the areas marked
by the diagonal pattern. In cases where the ground
clearance must be utilized, it is recommended to populate
this area with small discrete components. The discrete
components should be connected using the thinnest wires
possible. Large conducting components such as batteries,
connectors or buttons should be avoided.
The areas closest to the antenna, marked by the diagonal
pattern, are sensitive to the presence of any conducting
body. Violating this clearance might result in antenna
detuning or loss of radiation efficiency.
In cases where the antenna clearance is shared by both
VJ 3505 and an additional antenna, it is recommended to
maintain maximum distance between the antennas. Most
cellular antennas are mounted on a plastic carrier and are
not soldered directly to the main PCB. In these cases, the
plastic carrier can be designed to meet the recommended
clearance as described above.
Technical support for antenna integration is provided by
Vishay Vitramon division.
www.vishay.com
26
For technical questions, contact: [email protected]
Document Number: 45187
Revision: 18-Jun-10
Application Note
Vishay Vitramon
VJ 3505 Layout Design Principles
Z AXIS DESIGN PRINCIPLES
The following section deals with the recommended
clearance required by VJ 3505 in the Z axis. As in the case
of the PCB clearance, the area closest to the antenna is
sensitive to the presence of any conducting materials. The
following figure provides recommendations for the clearance
required in elevation:
5 mm
10 mm
20 mm
10 mm
20 mm
Legend:
FR4 PCB
Copper and component free area on all layers
VJ 3505 multilayer chip antenna
The company’s products are covered by one or more of the following:
WO2008250262 (A1), US2008303720 (A1), US2008305750 (A1), WO2008154173 (A1). Other patents pending.
ORDERING INFORMATION
VISHAY MATERIAL
PACKAGING QUANTITY
VJ 3505
VJ3505M011SXMSRA0
1000 pieces
Document Number: 45187
Revision: 18-Jun-10
For technical questions, contact: [email protected]
www.vishay.com
27
APPLICATION NOTE
Fig. 3 - Side View of Antenna Assembled on PCB
Vishay Vitramon
www.vishay.com
28
VISHAY VITRAMON
Ceramic Chip Antenna
Application Note
VJ 3505 GSM Interference Immune Tuning Circuit
Vishay offers an evaluation kit fitted with the GSM immune
tuning circuit and the VJ 3505 miniature UHF antenna to
allow designers to measure the antenna parameters.
For any technical support please contact: [email protected]
VJ 3505
Tuning
Circuit
GSM
UHF
Connector Connector
Port 2
VJ 3505 is a narrow band antenna that requires an active
digital tuning circuit to allow it to cover the UHF band which
spans between 470 MHz and 860 MHz. The tuning circuit
typology is designed to withstand external interference such
as GSM transmission. Nevertheless, in cases where the
GSM transmitter is in close proximity to VJ 3505, the tuning
circuit typology should be modified to eliminate the risk of
antenna detuning. The following document describes in
detail the GSM interference immune tuning circuit.
GSM Antenna
Port 1
VJ 3505 GSM INTERFERENCE IMMUNE
TUNING CIRCUIT
CHOOSING THE CORRECT TUNING CIRCUIT
Vishay Vitramon division provides two tuning circuit
reference designs:
• Standard tuning circuit - described in detail in a separate
application note titled “EVK 3505 User Guide”
Network Analyzer
S12
• Active digital tuning circuit controlled by two input lines
allowing full coverage of the UHF band 470 to 860 (MHz)
• GSM immune tuning circuit - described hereafter
The standard typology enables excellent antenna
performance while maintaining minimal cost. However, the
standard tuning circuit can withstand GSM interference up to
0 dBm, measured at the VJ 3505 antenna feed. The power
received by VJ 3505 can be measured using the test setup
described in figure 1.
Fig. 1 - Test Setup
Once the coupling factor is measured, the received power at
the VJ 3505 feed can be estimated as follows:
Received Power = Transmitted Power + Coupling Factor
Example:
If the GSM peak power output is + 33 dBm and the coupling
factor was found to be - 15 dB then the maximum received
power would be + 18 dBm.
The GSM immune tuning circuit should be used in cases
where the peak received power is greater than 0 dBm.
Document Number: 45186
Revision: 08-Jul-10
For technical questions, contact: [email protected]
www.vishay.com
29
APPLICATION NOTE
A test PCB should be designed to accommodate both
VJ 3505 and the GSM antennas. The two antennas should
be positioned as far from each other as allowed by the
mechanical constraints of the application. Using a network
analyzer, the coupling between the antennas can be directly
measured for each of the four channels offered by the tuning
circuit. The same test setup can later be used to fine tune the
tuning element components to negate any detuning caused
by the GSM antenna, or other nearby components.
Application Note
Vishay Vitramon
VJ 3505 GSM Interference Immune Tuning Circuit
GSM IMMUNE TUNING CIRCUIT TOPOLOGY
SCHEMATICS
Figure 2 presents the schematic drawing of the recommended tuning circuit.
VJ 3505
L1
R1
L4
D1
Digital input 1
L2
C3
R2
L5
L3
D2
Digital input 2
C4
R3
C1
L6
C2
50 Ω RF
feed
APPLICATION NOTE
Fig. 2 - Tuning Circuit Schematics
www.vishay.com
30
For technical questions, contact: [email protected]
Document Number: 45186
Revision: 08-Jul-10
Application Note
Vishay Vitramon
VJ 3505 GSM Interference Immune Tuning Circuit
LAYOUT
Figure 3 shows the recommended layout of the tuning circuit. Layout should be as compact as possible.
Antenna not in scale
L1
Digital input 1
D1
R1
L4
L2
D2
R2
L5
Digital input 2
L3
C3
C4
R3
L6
C1
L4
C2
50 Ω line
Legend
Conducting strip lines
0402 component
Via hole to ground plane
Fig. 3 - Tuning Circuit Layout
Document Number: 45186
Revision: 08-Jul-10
For technical questions, contact: [email protected]
www.vishay.com
31
APPLICATION NOTE
Ground plane copper area on top, bottom and/or inner layers
Application Note
Vishay Vitramon
VJ 3505 GSM Interference Immune Tuning Circuit
LAYOUT GUIDELINES
1. The distance between the tuning circuit components should be minimized
2. Inductor L1 should be located as close as possible to the antenna
3. Inductors L4 and L5 should be as close as possible to the PIN diodes
4. It is recommended to remove all ground planes from under the tuning circuit. The ground plane should be added to insure a
50 Ω wave guide after capacitor C1
REFERENCE TUNING CIRCUIT BOM
TABLE 1 - TUNING CIRCUIT BILL OF MATERIALS
QUANTITY PER
CIRCUIT
PART NUMBER
MANUFACTURER
L4, L5, L6
3
HK 1005 R12J-T
Taiyo Yuden
D1, D2
2
BAR63-06W
Infineon
15 nH
L1
1
IMC0402ER15NJ
Vishay
12 nH
L2
1
IMC0402ER12NJ
Vishay
27 nH
L3
1
IMC0402ER27NJ
Vishay
3.9 pF
C1
1
VJ0402A3R9BXACW1BC
Vishay
VALUE
REFERENCE
120 nH
PIN diode
220 pF
C2, C3, C4
3
VJ0402A221JXACW1BC
Vishay
330 Ω
R1, R2, R3
3
CRCW0402330RFKED
Vishay
Note
• Any changes made in the reference BOM might result in loss of radiation efficiency.
CONTROL SIGNAL INTEGRITY
The following table describes the desired control signal properties:
TABLE 2 - SIGNAL INTEGRITY FOR ELECTRICAL CONTROL ALTERNATIVE
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNITS
COMMENTS
Equivalent DC circuit
Logical LOW
Vil
- 0.3
0
0.2
V
APPLICATION NOTE
Equivalent DC circuit
Logical HIGH
Source current
Sink current
www.vishay.com
32
Vih
3
3.3
5
V
Isource
4
4.2
5
mA
Vin = 5 V
Diode reverse leakage
current
Isink
0
0.01
0.05
mA
Vin = - 0.3 V
For technical questions, contact: [email protected]
Document Number: 45186
Revision: 08-Jul-10
Application Note
Vishay Vitramon
VJ 3505 GSM Interference Immune Tuning Circuit
CHANNEL CHARACTERISTICS
The two digital control lines offer four frequency channels as described in table 3 below. This table shows the typical peak gain
obtained in each of the four channels.
TABLE 3 - PEAK GAIN OBTAINED IN EACH OF THE FOUR CHANNELS
PARAMETER
D1
D2
BAND (MHz)
S11 (dB)
460
5
560
660
760
860
760
860
760
860
760
860
0
-5
1
L
L
470 to 540
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
2
H
L
540 to 620
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
3
L
H
620 to 750
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
4
H
H
750 to 860 (1)
- 10
- 15
- 25
f (MHz)
Note
(1) Applications withstanding strong GSM interference will incorporate a band pass filter designed to filter out the interfering signal. Such a filter
will add significant attenuation above 750 MHz.
The company’s products are covered by one or more of the following:
WO2008250262 (A1), US2008303720 (A1), US2008305750 (A1), WO2008154173 (A1). Other patents pending.
ORDERING INFORMATION
VISHAY MATERIAL
PACKAGING QUANTITY
VJ 3505
VJ3505M011SXMSRA0
1000 pieces
Document Number: 45186
Revision: 08-Jul-10
For technical questions, contact: [email protected]
www.vishay.com
33
APPLICATION NOTE
- 20
Vishay Vitramon
www.vishay.com
34
Contents
EVK 6040 User Guide ....... 37
EVK 3505 User Guide ....... 45
Evaluation
Board
Vishay Vitramon
www.vishay.com
36
VISHAY VITRAMON
Ceramic Chip Antenna
Application Note
EVK 6040 User Guide
EVALUATION KIT COMPONENTS
The evaluation kit is shown in figure 1. Table 1 details the kit
components.
Antenna
Tuning
circuit
The company’s products are covered by one or more of the
following:
WO2008250262 (A1), US2008303720 (A1),
US2008305750 (A1), WO2008154173 (A1).
Other patents pending.
Dip switch
array
GENERAL
This document is designed to serve as a user guide for the
VJ 6040 evaluation kit. It is recommended that this document
be read after the following documents were viewed:
DC
connector
SMA
connector
Digital
control
pins
• VJ 6040 datasheet
• VJ 6040 application notes
Fig. 1 - Evaluation Kit
ITEM
Antenna
FUNCTIONALITY
Actual ceramic chip antenna
SMA connector
Connect a 50 Ω RF cable to this connector, to get signals received on the antenna end
Tuning circuit
A digital tuning circuit used to cover the entire UHF band with 2 control pins
Dip switch array
Used to control the tuning circuit manually. Only pins 3 and 4 (marked D0 and D1) are in use.
Pins 1 and 2 are not connected
Digital control pins
Used to control the tuning circuit electrically. Pins D0 and D1 are standard CMOS level digital
control pins capable of supplying at least 1 mA
DC connector
Used to feed power to the tuning circuit. This connector is used only in the manual tuning
alternative set up
Document Number: 45189
Revision: 03-Aug-10
For technical questions, contact: [email protected]
www.vishay.com
37
APPLICATION NOTE
TABLE 1 - KIT COMPONENTS
Application Note
Vishay Vitramon
EVK 6040 User Guide
KIT SETUP
There are 2 recommended alternative ways to set up the
evaluation kit for testing and use. The difference between
these alternatives is in the way the tuning circuit is
controlled. Both alternatives are described hereafter.
SET UP ALTERNATIVE 1 - MANUAL CONTROL
In this alternative, the tuning circuit is controlled by the on
board mechanical dip switch array. The control line voltage
in this setup should be applied to the on board DC connector.
A voltage of 2 V to 30 V will ensure good performance. The
evaluation kit is supplied with a battery house designed to
provide 3 V using two AAA batteries.
SET UP ALTERNATIVE 2 - ELECTRICAL
CONTROL
In this alternative, the tuning circuit is controlled by the 5 pin
digital connector. In order to function properly in this
alternative and avoid short circuit, the following rules need to
be followed:
1. Remove the batteries from the battery housing.
Disconnect the DC jack from the DC connector
2. Leave all dip switches in L position (in this position, the
tuning circuit control pins are in High-Z impedance, and
can be controlled by the external pins)
3. Connect the GND pin on the EVK to the common ground
used by the external digital control circuit
VISHAY
VJ 6040
VISHAY
VJ 6040
Use D0 and D1
to switch channels
H
Leave all switches
in L position
L
D0
D1
D1
D0
GND
50 Ω RF cable to
receiver/test equipment
DC feed to
tuning circuit
H
L
D0
D1
50 Ω RF cable to
receiver/test equipment
To external
digital control circuit
D1
D0
GND
AAA 1.5 V
APPLICATION NOTE
AAA 1.5 V
Fig. 2 - Manual Control
Fig. 3 - Electrical Control
In set up alternative 1, the tuning circuit is driven and
controlled by dip switches D0 and D1. The other two
switches in the array are not connected. Maximum current
consumed by the tuning circuit is less than 2 mA when
operating at 3 V.
The 3 pin digital connector is expected to be connected to an
external control circuit. The digital control signals D0 and D1
are standard CMOS level signals.
Note
• Signal integrity is detailed in table 2.
A 50 Ω RF cable, connected to the SMA connector, can be
used to guide the received signals from the antenna to the
desired applicable receiver/test equipment.
Note
• See table 3 for details regarding channel selection.
www.vishay.com
38
For technical questions, contact: [email protected]
Document Number: 45189
Revision: 03-Aug-10
Application Note
Vishay Vitramon
EVK 6040 User Guide
CONTROL SIGNAL INTEGRITY
Table 2 describes the desired control signal properties:
TABLE 2 - SIGNAL INTEGRITY FOR ELECTRICAL CONTROL ALTERNATIVE
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNITS
COMMENTS
Equivalent DC circuit
Vih
Logical LOW
- 0.3
0
0.2
V
1 kΩ
Vil
Equivalent DC circuit
Vih
2
3
5
V
Source current
Isource
0
0.01
0.05
mA
Vin = 5 V
This is diode reverse leakage current
Sink current
Isink
4
4.2
5
mA
Vin = - 0.5 V
1 kΩ
Vih
Logical HIGH
OPERATING THE KIT
To properly operate the kit, the antenna needs to be tuned to the required band. The kit is offering coverage of the entire UHF
band, by dividing it into 4 sub-bands. Selecting the correct band is critical for antenna performance.
For technical questions, contact: [email protected]
www.vishay.com
39
APPLICATION NOTE
Document Number: 45189
Revision: 03-Aug-10
Application Note
Vishay Vitramon
EVK 6040 User Guide
Table 3 describes channel selection for both manual and electrical set up alternatives.
TABLE 3 - TUNING CIRCUIT BANDS, FOR CHANNEL SELECTION ONLY
CHANNEL
D1
D2
BAND (MHz)
S11 (dB)
460
5
560
660
760
860
760
860
760
860
760
860
0
-5
1
H
L
470 to 540
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
2
L
L
540 to 620
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
3
H
H
620 to 750
- 10
- 15
- 20
APPLICATION NOTE
- 25
460
5
f (MHz)
560
660
0
-5
4
L
H
750 to 860
- 10
- 15
- 20
- 25
f (MHz)
Comment: The EVK tuning circuit is optimized to cover the band of 474 MHz to 800 MHz. There is an alternative tuning circuit
available, to cover the band of 474 MHz to 860 MHz. For more information see “VJ 6040 application notes - tuning circuit”.
www.vishay.com
40
For technical questions, contact: [email protected]
Document Number: 45189
Revision: 03-Aug-10
Application Note
Vishay Vitramon
EVK 6040 User Guide
VJ 6040 EVALUATION KIT ANTENNA PERFORMANCE
MEASURED PEAK GAIN AND EFFICIENCY
The antenna radiation characteristics are influenced by several factors including ground plane dimensions and impedance
matching network.
The antenna parameters presented hereafter were measured using to the configuration suggested by the VJ 6040 evaluation
board.
Figure 4 shows radiation patterns of the EVK 6040 in various frequencies across the UHF band:
Performance - Radiation Patterns (VJ 6040)
0
- 10
- 20
- 30
- 40
- 50
500 MHz
600 MHz
700 MHz
800 MHz
Fig. 4 - Peak Gain vs. Frequency
Applications that do not require full coverage of the UHF band can enjoy additional efficiency by removing the tuning
circuit. In this case the antenna can be fixed to any 150 MHz band within the UHF range.
Figure 5 shows simulated peak gain and radiation efficiency of the VJ 6040 antenna over frequency throughout the UHF band,
compared with the MBRAI requirements:
0
Simulated
Measured
-4
-6
Standard
-8
- 10
- 12
450
500
550
600
650
700
750
Frequency (MHz)
800
850
900
Fig. 5 - Peak Gain vs. Frequency
Document Number: 45189
Revision: 03-Aug-10
For technical questions, contact: [email protected]
www.vishay.com
41
APPLICATION NOTE
Peak Gain (dBi)
-2
Application Note
Vishay Vitramon
EVK 6040 User Guide
SCHEMATIC DRAWING
Figure 6 below shows the schematic drawing of the evaluation kit. See tuning circuit application note for details regarding
recommended BOM.
VJ 6040
C6
L1
L3
R1
Digital Input 1
D1
D1
C1
L4
R2
D2
L5
R3
Digital Input 2
D2
C4
L2
C5
C7
C2
Dip Switch
DC
Jack
50 Ω RF feed
VCC
D1
D2
APPLICATION NOTE
Fig. 6 - EVK 6040 Schematic
TABLE 4 - EVK6040 BOM LIST
VALUE
Antenna
120 nH
Pin diode
27 nH
39 nH
3.3 pF
2.2 pF
220 pF
1 kΩ
0Ω
REFERENCE
VJ 6040
l3, l4, l5
D1, D2
L1
L2
C1
C5
C2, C4, C6, C7
R1, R3
R2
QUANTITY PER CIRCUIT
PART NUMBER
1
VJ6040M011SXISRA0
3
HK1005R12J-T
2
BAR63-02V
1
IMC0402ER27NJ
1
IMC0402ER39NJ
1
VJ0402A3R3BXACW1BC
1
VJ0402A2R2BXACW1BC
4
VJ0402A221JXACW1BC
2
CRCW1KJNED
1
CRCW0R0Z0ED
MANUFACTURER
Vishay
Taiyo Yuden
Infineon
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Features are subject to revisions or changes without notification.
www.vishay.com
42
For technical questions, contact: [email protected]
Document Number: 45189
Revision: 03-Aug-10
Application Note
Vishay Vitramon
EVK 6040 User Guide
ELECTRICAL CHARACTERISTICS AND FUNCTIONAL DESCRIPTION
The tuning circuit herein is effectively an inductor, connected
in series with a capacitor. The total impedance generated by
this circuit can be described in the following equation
(excluding the capacitors C2, C3 and C4):
Z = Z L + Z C + Z L = j * (ω L 1 −
1
1
2
ω = 2π f
1
ω C1
+ ω L 2)
By connecting pin diodes in parallel to C1 and L2, the tuning
circuit can electrically short-circuit one of the two reactants or
both. Table 2 is detailing all logical states of the tuning circuit,
and the electrical effect as presented in the impedance Z. For
the sake of small signal analysis, when the pin diode is in
forward conductance mode, it is represented as a 2 Ω
resistor.
TABLE 5 - TUNING CIRCUITS' IMPEDANCES
DIGITAL INPUT 1
DIGITAL INPUT 2
PIN 0
PIN 1
0
0
High Z
High Z
0
1
High Z
Z (W)
j * ( ω L1 −
2Ω
1
ω C1
j * ( ω L1 −
+ ω L2 )
1
)+ 2
ω C1
1
0
2Ω
High Z
j * ( ω L1 + ω L2 ) + 2
1
1
2Ω
2Ω
j * ω L1 + 4
As evident from table 2, each one of the 4 possible logic
states represents a different tuning circuit between the
antenna and the receiver port.
By applying the values shown in table 1 to L1, C1 and L2 the
4 states cover the entire UHF band.
SELECTING THE RESISTIVE VALUES OF R
R1 resistor is used to DC bias the pin diodes. Selecting the
value for R1 can be derived for the following equation:
Vcontrol - Vd
Id
Let's assume that the digital control line is 1.8 V when high.
To allow a current of 1 mA, R1 should be set as follows:
When:
R = resistive value (in Ω) for R1
Vcontrol = control voltage (in V) as generated by the controller
Vd = forward voltage (in V) generated on the pin diode when
biased
R1 =
1 .8 - 0 .8
= 1 kΩ
0 . 001
Id = forward current (in A) through the pin diode when biased
Document Number: 45189
Revision: 03-Aug-10
For technical questions, contact: [email protected]
www.vishay.com
43
APPLICATION NOTE
R =
Example:
The pin diode should be forward biased at 0.8 V to allow just
over 1 mA to pass through it (see the graphs below). At 1 mA,
the diode small signal impedance drops to its required value
of 2 Ω.
Application Note
Vishay Vitramon
EVK 6040 User Guide
6
100.00
f = 100 MHz
RF - Forward Resistance (Ω)
I F - Forward Current (mA)
5
10.00
1.00
0.10
4
3
2
1
0.01
0
0.5
18325
0.6
0.7
0.8
0.9
1.0
0.1
VF - Forward Voltage (V)
10
1.0
18341_1
100
IF - Forward Current (mA)
Fig. 7 - Pin Diode Characteristics
GROUND PLANE CONFIGURATION
General
35 mm
Additional
antenna
VISHAY
VJ 6040
Tuning
Circuit
VJ 6040 evaluation board demonstrates exceptional antenna
performance achieved with a 40 mm by 80 mm ground plane.
90.5 mm
Receiver
77 mm
50 Ohm
An important consideration in the design of this product into
cell phone applications is the coexistence of the cell phone
antenna with VJ 6040. The recommended ground plane
configuration presented below includes recommendations
regarding how to set the cellular antenna relative to the
VJ 6040 to minimize losses to both antennas.
APPLICATION NOTE
10.5 mm
40 mm
3 mm
The VJ 6040 antenna is unbalanced, therefore requiring a
ground plane for its operation. The ground plane dimensions
significantly influence the antenna performance. The rule of
thumb in unbalanced antenna ground plane design is that
antenna efficiency increases with ground plane size. The
evaluation board demonstrates how the antenna complies
with the EMBRAI standard when set against a ground plane
small enough to fit into most cellular phone designs.
Applications that allow larger ground planes can enjoy higher
efficiency.
Figure 4 describes a recommended reference ground plane
configuration.
The areas marked in green in the close proximity to the
antenna should remain empty from large conducting
surfaces including ground planes (outer or inner layers),
batteries, connectors, buttons, or other large components.
Applications that require additional antennas, such as cell
phones, should position the cellular antenna at the top left
hand side while maintaining maximum distance from
VJ 6040. The presence of an additional antenna might cause
loss of efficiency to both antennas.
www.vishay.com
44
Fig. 8 - Recommended Ground Plane
For technical questions, contact: [email protected]
Document Number: 45189
Revision: 03-Aug-10
VISHAY VITRAMON
Ceramic Chip Antenna
Application Note
EVK 3505 User Guide
EVALUATION KIT COMPONENTS
The evaluation kit is shown in figure 1. Table 1 details the kit
components.
The company’s products are covered by one or more of the
following:
WO2008250262 (A1), US2008303720 (A1),
US2008305750 (A1), WO2008154173 (A1).
Other patents pending.
GENERAL
This document is designed to serve as a user guide for the
VJ 3505 evaluation kit. It is recommended that this document
be read after the following documents were viewed:
• VJ 3505 datasheet
• VJ 3505 application notes
Fig. 1 - Evaluation Kit
ITEM
Antenna
FUNCTIONALITY
Ceramic chip antenna. 35 mm by 5 mm by 1.2 mm
SMA connector
Connect a 50 Ω RF cable to this connector, to get signals received on the antenna end
Tuning circuit
A digital tuning circuit used to cover the entire UHF band with 2 control pins
Dip switch array
Used to control the tuning circuit manually. Only pins 2 and 3 (marked D1 and D2) are in use.
Pins 1 and 4 are not connected
Digital control pins
Used to control the tuning circuit electrically. Pins D1 and D2 are standard CMOS level digital
control pins capable of supplying at least 1 mA
DC connector
Used to feed power to the tuning circuit. This connector is used only in the manual tuning
alternative set up
Document Number: 45188
Revision: 18-Aug-10
For technical questions, contact: [email protected]
www.vishay.com
45
APPLICATION NOTE
TABLE 1 - KIT COMPONENTS
Application Note
Vishay Vitramon
EVK 3505 User Guide
KIT SETUP
There are 2 recommended alternative ways to set up the
evaluation kit for testing and use. The difference between
these alternatives is in the way the tuning circuit is
controlled. Both alternatives are described hereafter.
SET UP ALTERNATIVE 1 - MANUAL CONTROL
In this alternative, the tuning circuit is controlled by the on
board mechanical dip switch array. The control line voltage
in this setup should be applied to the on board DC connector.
A voltage of 2 V to 30 V will ensure good performance. The
evaluation kit is supplied with a battery house designed to
provide 3 V using two AAA batteries.
SET UP ALTERNATIVE 2 - ELECTRICAL
CONTROL
In this alternative, the tuning circuit is controlled by the 5 pin
digital connector. In order to function properly in this
alternative and avoid short circuit, the following rules need to
be followed:
1. Remove the batteries from the battery housing
2. Leave all dip switches in L position (in this position, the
tuning circuit control pins are in High-Z impedance, and
can be controlled by the external pins)
3. Connect the GND pin on the EVK to the common ground
used by the external digital control circuit
VJ 3505
VJ 3505
50 Ω RF cable to receiver/
test equipment
GND
Vcc
D1
D2
APPLICATION NOTE
Connect control signals and
ground to these pins
AAA 1.5 V
DC feed to
circuit
H
Set All Switches to Low
AAA 1.5 V
Note that only two of the four
switches are active
L
D3
D2
D1
D3
D2
D1
GND
Vcc
D1
D2
AAA 1.5 V
L H
Manual Channel Selection
switches.
DC Jack can remain connected
if batteries were removed
AAA 1.5 V
50 Ω RF cable to receiver/
test equipment
Fig. 2 - Manual Control
Fig. 3 - Electrical Control
In set up alternative 1, the tuning circuit is driven and
controlled by dip switches D1 and D2. The other two
switches in the array are not connected. Maximum current
consumed by the tuning circuit is less than 2 mA when
operating at 3 V.
The 5 pin digital connector is expected to be connected to an
external control circuit. The digital control signals D1 and D2
are standard CMOS level signals.
A 50 Ω RF cable, connected to the SMA connector, can be
used to guide the received signals from the antenna to the
desired applicable receiver/test equipment.
Note
• See table 3 for details regarding channel selection.
www.vishay.com
46
For technical questions, contact: [email protected]
Document Number: 45188
Revision: 18-Aug-10
Application Note
Vishay Vitramon
EVK 3505 User Guide
CONTROL SIGNAL INTEGRITY
Table 2 describes the desired control signal properties:
TABLE 2 - SIGNAL INTEGRITY FOR ELECTRICAL CONTROL ALTERNATIVE
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNITS
COMMENTS
Equivalent DC Circuit
1 kΩ
Logical LOW
Vil
- 0.3
0
0.2
V
Equivalent DC circuit
1 kΩ
Logical HIGH
Vih
2
3
5
V
Sink current
Isink
0
0.01
0.05
mA
Vin = - 0.3 V
This is diode reverse leakage current
Isource
4
4.2
5
mA
Vin = 5 V
Source current
OPERATING THE KIT
To properly operate the kit, the antenna needs to be tuned to the required band. The kit is offering coverage of the entire UHF
band, by dividing it into 4 sub-bands. Selecting the correct band is critical for antenna performance.
For technical questions, contact: [email protected]
www.vishay.com
47
APPLICATION NOTE
Document Number: 45188
Revision: 18-Aug-10
Application Note
Vishay Vitramon
EVK 3505 User Guide
CHANNEL CHARACTERISTICS
The two digital control lines offer four frequency channels as described in the table 3 below. This table shows the typical peak gain
obtained in each of the four channels.
TABLE 3 - TUNING CIRCUIT BANDS
CHANNEL
D1
D2
BAND (MHz)
S11 (dB)
460
5
560
660
760
860
760
860
760
860
760
860
0
-5
1
H
L
470 to 540
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
2
l
L
540 to 620
- 10
- 15
- 20
- 25
460
5
f (MHz)
560
660
0
-5
3
H
H
620 to 750
- 10
- 15
- 20
- 25
APPLICATION NOTE
460
5
f (MHz)
560
660
0
-5
4
l
h
750 to 860
- 10
- 15
- 20
- 25
f (MHz)
Comment: The EVK tuning circuit is optimized to cover the band of 474 MHz to 800 MHz. There is an alternative tuning circuit
available, to cover the band of 474 MHz to 860 MHz. For more information see 'VJ 3505 application notes - tuning circuit'.
www.vishay.com
48
For technical questions, contact: [email protected]
Document Number: 45188
Revision: 18-Aug-10
Application Note
Vishay Vitramon
EVK 3505 User Guide
VJ 3505 EVALUATION KIT ANTENNA PERFORMANCE
MEASURED PEAK GAIN AND EFFICIENCY
The antenna radiation characteristics are influenced by several factors including ground plane dimensions and impedance
matching network.
The antenna parameters presented hereafter were measured using to the configuration suggested by the VJ 3505 evaluation
board.
Figure 4 shows radiation patterns of the EVK 3505 in various frequencies across the UHF band:
Performance - Radiation Pattern (VJ 3505)
0
330
30
- 10
- 20
300
60
- 30
-4 0
- 50
270
90
500 MHz
600 MHz
700 MHz
862 MHz
240
120
150
210
180
Fig. 4 - Peak Gain vs. Frequency
Applications that do not require full coverage of the UHF band can enjoy additional efficiency by removing the tuning
circuit. In this case the antenna can be fixed to any 150 MHz band within the UHF range.
Figure 5 shows simulated peak gain and radiation efficiency of the VJ 3505 antenna over frequency throughout the UHF band,
compared with the MBRAI requirements:
VJ 3505 Simulated Antenna Parameters
2
-2
-4
-6
Peak Gain
Radiation Efficiency
MBRAI
-8
- 10
- 12
470
520
570
620
670
720
770
820
870
Frequency (MHz)
Fig. 5 - Simulated Radiation Efficiency and Peak Gain vs. Frequency
Document Number: 45188
Revision: 18-Aug-10
For technical questions, contact: [email protected]
www.vishay.com
49
APPLICATION NOTE
Radiation Efficiency (dB)
0
Application Note
Vishay Vitramon
EVK 3505 User Guide
SCHEMATIC DRAWING
Figure 6 below shows the schematic drawing of the evaluation kit. See tuning circuit application note for details regarding
recommended BOM.
VJ 3505
C6
L1
L3
R1
Digital Input 1
D1
D1
C1
L4
R2
D2
L2
L5
R3
Digital Input 2
D2
C4
C5
C7
C2
Dip Switch
50 Ω RF feed
VCC
DC
Jack
D1
D2
APPLICATION NOTE
Fig. 6 - EVK 3505 Schematic
TABLE 4 - EVK3505 BOM LIST
VALUE
Antenna
120 nH
Pin diode
27 nH
39 nH
3.3 pF
2.2 pF
220 pF
1 kΩ
0Ω
REFERENCE
VJ 3505
l3, l4, l5
D1, D2
L1
L2
C1
C5
C2, C4, C6, C7
R1, R3
R2
QUANTITY PER CIRCUIT
PART NUMBER
1
VJ3505M011SXMSRA0
3
HK1005R12J-T
2
BAR63-02V
1
IMC0402ER27NJ
1
IMC0402ER39NJ
1
VJ0402A3R3BXACW1BC
1
VJ0402A2R2BXACW1BC
4
VJ0402A221JXACW1BC
2
CRCW1KJNED
1
CRCW0R0Z0ED
MANUFACTURER
Vishay
Taiyo Yuden
Infineon
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Features are subject to revisions or changes without notification.
www.vishay.com
50
For technical questions, contact: [email protected]
Document Number: 45188
Revision: 18-Aug-10
Application Note
Vishay Vitramon
EVK 3505 User Guide
ELECTRICAL CHARACTERISTICS AND FUNCTIONAL DESCRIPTION
The tuning circuit herein is effectively an inductor, connected
in series with a capacitor. The total impedance generated by
this circuit can be described in the following equation
(excluding the capacitors C2, C3 and C4):
Z = Z L + Z C + Z L = j * (ω L 1 −
1
1
2
ω = 2π f
1
ω C1
+ ω L 2)
By connecting pin diodes in parallel to C1 and L2, the tuning
circuit can electrically short-circuit one of the two reactants or
both. Table 2 is detailing all logical states of the tuning circuit,
and the electrical effect as presented in the impedance Z. For
the sake of small signal analysis, when the pin diode is in
forward conductance mode, it is represented as a 2 Ω
resistor.
TABLE 5 - TUNING CIRCUITS' IMPEDANCES
DIGITAL INPUT 1
DIGITAL INPUT 2
PIN 0
PIN 1
0
0
High Z
High Z
0
1
High Z
Z (W)
j * ( ω L1 −
2Ω
1
ω C1
j * ( ω L1 −
+ ω L2 )
1
)+ 2
ω C1
1
0
2Ω
High Z
j * ( ω L1 + ω L2 ) + 2
1
1
2Ω
2Ω
j * ω L1 + 4
As evident from table 2, each one of the 4 possible logic
states represents a different tuning circuit between the
antenna and the receiver port.
By applying the values shown in table 1 to L1, C1 and L2 the
4 states cover the entire UHF band.
SELECTING THE RESISTIVE VALUES OF R
R1 resistor is used to DC bias the pin diodes. Selecting the
value for R1 can be derived for the following equation:
Vcontrol - Vd
Id
Let's assume that the digital control line is 1.8 V when high.
To allow a current of 1 mA, R1 should be set as follows:
When:
R = resistive value (in Ω) for R1
Vcontrol = control voltage (in V) as generated by the controller
Vd = forward voltage (in V) generated on the pin diode when
biased
R1 =
1 .8 - 0 .8
= 1 kΩ
0 . 001
Id = forward current (in A) through the pin diode when biased
Document Number: 45188
Revision: 18-Aug-10
For technical questions, contact: [email protected]
www.vishay.com
51
APPLICATION NOTE
R =
Example:
The pin diode should be forward biased at 0.8 V to allow just
over 1 mA to pass through it (see the graphs below). At 1 mA,
the diode small signal impedance drops to its required value
of 2 Ω.
Application Note
Vishay Vitramon
EVK 3505 User Guide
6
100.00
f = 100 MHz
RF - Forward Resistance (Ω)
I F - Forward Current (mA)
5
10.00
1.00
0.10
4
3
2
1
0.01
0
0.5
18325
0.6
0.7
0.8
0.9
1.0
VF - Forward Voltage (V)
0.1
18341_1
10
1.0
100
IF - Forward Current (mA)
Fig. 7 - Pin Diode Characteristics
GROUND PLANE CONFIGURATION
General
APPLICATION NOTE
5 mm
VISHAY VJ 3505
Tuning
Circuit
Receiver
85 mm
72 mm
VJ 3505 evaluation board demonstrates exceptional antenna
performance achieved with a 40 mm by 80 mm ground plane.
35 mm
3 mm
An important consideration in the design of this product into
cell phone applications is the coexistence of the cell phone
antenna with VJ 3505. The recommended ground plane
configuration presented below includes recommendations
regarding how to set the cellular antenna relative to the
VJ 3505 to minimize losses to both antennas.
40 mm
50 Ohm
The VJ 3505 antenna is unbalanced, therefore requiring a
ground plane for its operation. The ground plane dimensions
significantly influence the antenna performance. The rule of
thumb in unbalanced antenna ground plane design is that
antenna efficiency increases with ground plane size. The
evaluation board demonstrates how the antenna complies
with the EMBRAI standard when set against a ground plane
small enough to fit into most cellular phone designs.
Applications that allow larger ground planes can enjoy higher
efficiency.
Figure 4 describes a recommended reference ground plane
configuration.
The areas marked in green in the close proximity to the
antenna should remain empty from large conducting
surfaces including ground planes (outer or inner layers),
batteries, connectors, buttons, or other large components.
Applications that require additional antennas, such as cell
phones, should position the cellular antenna at the top left
hand side while maintaining maximum distance from
VJ 3505. The presence of an additional antenna might cause
loss of efficiency to both antennas.
www.vishay.com
52
Fig. 8 - Recommended Ground Plane
For technical questions, contact: [email protected]
Document Number: 45188
Revision: 18-Aug-10
Notes
Vishay Vitramon
www.vishay.com
53
Notes
Vishay Vitramon
www.vishay.com
54
Build Vishay
into your Design
WORLDWIDE SALES CONTACTS
Visit www.vishay.com for product information or select below
for a current list of sales offices, representatives, and distributors.
THE AMERICAS
EUROPE
UNITED STATES
GERMANY
VISHAY AMERICAS
ONE GREENWICH PLACE
SHELTON, CT 06484
UNITED STATES
PH: +1-402-563-6866
FAX: +1-402-563-6296
VISHAY ELECTRONIC GMBH
GEHEIMRAT-ROSENTHAL-STR. 100
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VISHAY INTERTECHNOLOGY
ASIA PTE LTD.
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JAPAN
VISHAY JAPAN CO., LTD.
SHIBUYA PRESTIGE BLDG. 4F
3-12-22, SHIBUYA
SHIBUYA-KU
TOKYO 150-0002
JAPAN
PH: +81-3-5466-7150
FAX: +81-3-5466-7160
One of the World’s Largest Manufacturers of
Discrete Semiconductors and Passive Components
CERAMIC CHIP ANTENNAS
One of the World’s Largest Manufacturers of
Discrete Semiconductors and Passive Components
DATA B O O K
World Headquarters
Vishay Intertechnology, Inc.
63 Lancaster Avenue
Malvern, PA 19355-2143
United States
© Copyright 2010 Vishay Intertechnology, Inc.
® Registered trademarks of Vishay Intertechnology, Inc.
All rights reserved. Printed in Germany.
Specifications subject to change without notice.
w w w. v i s h a y. c o m
VSE-DB0113-1009