VJ 3505 Datasheet

VJ 3505
www.vishay.com
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.
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.
•
APPLICATIONS
• Mobile UHF TV receivers including DVB-T, DVB-H,
ISDB-T, CMMB, ATSC, and MediaFLO devices
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.
Fig 1. shows simulated peak gain and radiation efficiency
over frequency throughout the UHF band, compared with
the MBRAI requirements.
VJ 3505 Simulated Antenna Parameters
2
0
Radiation Efficiency (dB)
•
•
•
•
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  unbalanced interface
Operating temperature range (-40 °C to +85 °C)
Reference design and evaluation boards available upon
request
Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
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
QUICK REFERENCE DATA
SERIES
VJ3505M011SXMSRA0
Revision: 03-Mar-15
FREQUENCY
(MHz)
470 to 860
MAX. GAIN
(dBi)
-0.5
AVERAGE GAIN
(dBi)
-1
Document Number: 45158
1
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
VJ 3505
www.vishay.com
Vishay Vitramon
RADIATION PATTERN
The 3D planes of VJ 3505 are defined in Fig 2.
Z
Y
X
Fig. 2 - VJ 3505 3D Plane Definition
Fig 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
Revision: 03-Mar-15
Document Number: 45158
2
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
VJ 3505
www.vishay.com
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
-50
270
90
90
120
240
120
240
150
210
60
-30
-30
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
-50
270
90
120
240
90
120
240
150
210
60
-30
150
210
180
180
Fig. 4 - Measured Radiation Pattern
FOOTPRINT AND MECHANICAL DIMENSIONS
The antenna footprint and mechanical dimensions are presented in Fig 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
All dimensions in mm
Figure not in scale
RF feed connects here
Fig. 5 - VJ 3505 Footprint
DIMENSIONS
Length
Width
Height
Revision: 03-Mar-15
(mm)
35 + 0.5 / - 0
5 + 0.5 / - 0
1.2 ± 0.1
Document Number: 45158
3
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
VJ 3505
www.vishay.com
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
Revision: 03-Mar-15
Document Number: 45158
4
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
VJ 3505
www.vishay.com
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
Revision: 03-Mar-15
Document Number: 45158
5
For technical questions, contact: [email protected]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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 in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk. Please
contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications.
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. Product names and markings noted herein may be trademarks of their respective owners.
Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000