W3126 Datasheet - Product finder

W3126 Datasheet version 1.0 ISM 315MHz Helical Antenna. (05/14)
ISM 315MHz Helical Antenna
Ground cleared under antenna, clearance area 8.50 x 40.00 mm. Pulse Part Number: W3126
Features
- Plastic supported helical antenna
- Size (helix): Length 35.35mm, ø 7mm
- Low weight (1.8g)
- Mounting on top of the PWB
- Through hole mechanical support pegs
- Feed contact by soldering via PWB hole
- Tray packing
- RoHS Compliant Product
Applications
- Remote controls, toys etc.
- 315MHz ISM Band Systems
Electrical specifications @ +25 °C
Note: Electrical characteristics depend on test board
(GP) size and antenna positioning on GP and Ground
Clearance area size.
ISM 315MHz
Typical performance (test board size 100x40 mm, PWB ground clearance area 8.50 x40.00 mm), tuning and matching
circuit: tuning 33nH series, matching 10nH shunt for Pulse standard evaluation board.
Frequency Range
[MHz]
Max Gain
[dBi]
Return loss
min. [dB]
Impedance
[Ω]
Operating
Temperature [°C]
315
-5
-10
50
-40 to +85
Pulse Finland Oy
Takatie 6
90440 Kempele, Finland
Tel: +358 207 935 500
Fax: +358 207 935 501
www.pulseeng.com/antennas
© 2014. All Rights Reserved.
W3126 Datasheet version 1.0 ISM 315MHz Helical Antenna. (05/14)
ISM 315MHz Helical Antenna
Ground cleared under antenna, clearance area 8.50 x 40.00 mm. Pulse Part Number: W3126
Terminal Configuration
PWB Layout
Feed line 50 Ω
100 mm
Ground Clearance Area (8.50 x 40.00 mm)
all metallization should be removed from
all PWB layers
Feed contact
Tuning component
(fine tuning)
Feed line 50 Ω
Tuning component
(raw tuning)
Feed contact
Matching component
Tuning component
(fine tuning)
Inductor for
frequency fine
tuning, in
this
Antenn
case 0 ohm
point (u
jumper,the
series
ante
40 mm
Ground via hole
Tuning component
(raw tuning)
Antenna feed
point (under
the antenna)
100 mm
Ground Clearance Area (8.50 x 40.00 mm)
all metallization should be removed from
all PWB layers Ground via hole
InductorInducto
for
frequen
frequency
roug
tuning,
tuning, 33
nH,
series case 0 o
jumper,
Inductor for
S11 matching,
Inducto
10nH, shunt
frequen
Matching component
40 mm
tuning,
series
Terminal Configuration and Antenna Dimensions
4.00
Helix
7.30
9.90
4.00
Helix
9.60
Inducto
S11 ma
10nH, s
ø 5.00
9.90
7.30
50
2.
50
2.
Scale 3:1
2
2
Support
Diameter 2.5mm,
length 2.6mm
4.15
50
Wire diameter
0.8mm
2.
Feed
terminal
ø
1
50
Terminal
Dimensions
2.
Terminal
Name
ø
No.
0
7.0
ø
ø
35.35
Antenna Features
ø 5.00
ø
Scale 3:1
2
1
0
1
7.0
9.60
ø
35.35
25.00
Matching circuit needs to placed on PCB close to antenna feed terminal.
Matching component values depend on device construction; size,
materials etc..
4.15 surrounding mechanics,
25.00
Pulse Finland Oy
Takatie 6
90440 Kempele, Finland
Tel: +358 207 935 500
Fax: +358 207 935 501
www.pulseeng.com/antennas
© 2014. All Rights Reserved.
W3126 Datasheet version 1.0 ISM 315MHz Helical Antenna. (05/14)
ISM 315MHz Helical Antenna
Ground cleared under antenna, clearance area 8.50 x 40.00 mm. Pulse Part Number: W3126
Typical Electrical Characteristics (T=25 °C)
0Ω
33 nH
Typical Return Loss S11/ impedance,
Feed line 50 Ω
Ground Clearance
Area (8.50 xon
40.00
mm)100x40mm
Measured
the
test board with tuning and matching circuit
ISM
ISM315MHz
315MHz
2323
OctOct
2007
2007
06:49:57
06:49:57
Ground
via hole
CH1
CH1
S11
S11
log
log
MAG
MAG
5 dB/REF
5 dB/REF
0 dB
0 dB
100 mm
all metallization should be removed from
all PWB layers
CH1Markers
CH1Markers
1. 1.
-16.902
-16.902
dBdB315
315
MHz
MHz
2. 2.
-14.812
-14.812
dBdB314
314
MHz
MHz
3. 3.
-14.642
-14.642
dBdB316
316
MHz
MHz
PRm
PRm
DelDel
ISM
ISM315MHz
315MHz
1. 1.
61.861
61.861
Ω Ω -10.211
-10.211
ΩΩ
2323
OctOct
2007
2007
06:50:10
06:50:10
315
315
MHz
MHz
Antenna feed
point (under 2. 2.
70.941
70.941
Ω Ω 5.3633
5.3633
ΩΩ
the antenna) 3. 3.
49.076
49.076
Ω Ω -18.451
-18.451
ΩΩ
CH1
CH1
S11
S11
1 U1 FS
U FS
PRm
PRm
DelDel
40 mm
CorCor
10 nH
CorCor
471.76
471.76
pFpF
314
314
MHz
MHz
316
316
MHz
MHz
Inductor for
frequency fine
tuning, in this
case 0 ohm
jumper, series
Inductor for
frequency rough
tuning, 33 nH,
series
Inductor for
S11 matching,
10nH, shunt
11
2323
Note: Exact matching and tuning
3 3components value depend on
33 nH
10 nH
7.30
0Ω
9.90
4.00
CENTER
CENTER
315.000
315.000
000
000
MHz
MHz
11
22
SPAN
SPAN
100.000
100.000
000
000
MHz
MHz
CENTER
CENTER
315.000
315.000
000
000
MHz
MHz
application, board size, cover etc.
SPAN
SPAN
100.000
100.000
000
000
MHz
MHz
ø 5.00
ø
7.0
Matching Circuit Details
0
35.35
0 Ohm
0 Ohm
6.8 6.8
nH nH
2
Antenna feed
point (under
the antenna)
Scale 3:1
ø
ø
50
2.
50
2.
Inductor for
frequency fine
tuning, in this
case 0 ohm
jumper, series
Inductor for
frequency rough
tuning, 33 nH,
series
Inductor for
S11 matching,
10nH, shunt
4.15
25.00
Note: Exact matching and tuning
components value depend on
application, board size, cover etc.
.00
Pulse Finland Oy
ø 5.00 Takatie 6
7.0
90440 Kempele, Finland
Tel: +358 207 935 500
Fax: +358 207 935 501
0
www.pulseeng.com/antennas
© 2014. All Rights Reserved.
W3126 Datasheet version 1.0 ISM 315MHz Helical Antenna. (05/14)
ISM 315MHz Helical Antenna
Ground cleared under antenna, clearance area 8.50 x 40.00 mm. Pulse Part Number: W3126
Typical Free space Radiation Patterns
Pulse Finland Oy
Takatie 6
90440 Kempele, Finland
Tel: +358 207 935 500
Fax: +358 207 935 501
www.pulseeng.com/antennas
© 2014. All Rights Reserved.