© 2007. All Rights Reserved.
Pulse Finland Oy
Takatie 6
90440 Kempele, Finland
Tel: +358 207 935 500
Fax: +358 207 935 501
www.pulseeng.com/antennas
W3108 Datasheet version 2.1. 2.4 GHz Helical WiFi SMD Antenna. (11/07).
2.4 GHz Helical WiFi SMD Antenna
Ground cleared under antenna, clearance area 7.50 x 5.50 mm. Pulse Part Number: W3108
Features
-Lowprole(5.5mm)
-CompactsizeWxLxH(5.0x2.5x5.5mm)
-Lowweight(140mg)
-LeadFreematerials
-FullySMDcompatible
-Leadfreesolderingcompatible
-Tapeandreelpacking
-RoHSCompliantProduct
Applications
-IEEE802.11b/g
-Bluetooth
-WiFi
-2.4GHzWLAN
-2.4GHzISMBandSystems
-ZigBeeIEEE802.15.4
Engineering samples available
Electrical specications @ +25 °C
Note: Electrical characteristics depend on test board
(GP) size and antenna positioning on GP and Ground
Clearance area size.
2.4 GHz WiFi
Typicalperformance(testboardsize100x40mm,PWBgroundclearancearea7.5x5.5mm)
Valuesbelowaremeasuredinsidetypicalmobilephonechassisincludingallmechanics
FrequencyRange
[MHz]
2400–2483.5
MaxGain
[dBi]
1.5
Efciency
[%]/[dB]
50/-3
Returnloss
min.[dB]
-8
Impedance
[Ω]
50
Operating
Temperature[°C]
-40to+85
© 2007. All Rights Reserved.
Pulse Finland Oy
Takatie 6
90440 Kempele, Finland
Tel: +358 207 935 500
Fax: +358 207 935 501
www.pulseeng.com/antennas
W3108 Datasheet version 2.1. 2.4 GHz Helical WiFi SMD Antenna. (11/07).
2.4 GHz Helical WiFi SMD Antenna
Ground cleared under antenna, clearance area 7.50 x 5.50 mm. Pulse Part Number: W3108
IJ7HJ(&*&$&&&&&&C>p IJEF(.*&$&&&&&&C>p
FHc
9eh
8=&BVg`Zgh
'$#'&$-.+Z8 ($*&&&&=>p
($#'($./&Z8 (**&$&&&&&&C>p
)$#.$,',.Z8 ($*.)+&=>p
7I$LA6C
+Z8%H;<&Z89>'I''BE=
9;DJ;H(**&$&&&&&&C>p IF7D.&&$&&&&&&C>p
FHc
9eh
7I$LA6C
9>'I'''K<I
8=&BVg`Zgh
'$*,$/..² #')$+&&² ($*&&&&&=>p
($(,$',)² #'-$+&+² ($*.&&&&=>p
)$))$-).² #(.*'.² '.+$),f>
(**&$&&&&&&C>p
(
'
)
)
'
(
,&
+&
*&
)&
(&
'&
&
()(&
(*&&
(*'&
(*(&
(*)&
(**&
(*+&
(*,&
(*-&
(*.&
(+,&
HWZ;\\QS
LaVc'!)<=o<8=Za^m
HWZ;\\QS
<h[gQC>pS
CWn=W_dQZ8_S
LaVc'!)<=o<8=Za^m
CWn=W_d
<h[gQC>pS
($+
($&
'$+
'$&
&$+
&
#&$+
#'$&
#'$+
#($&
()(&
(*&&
(*'&
(*(&
(*)&
(**&
(*+&
(*-&
(*.&
(+,&
(*,&
Typical Electrical Characteristics (T=25 °C)
MeasuredonbasicchassisincludingPWB,display,batteryandplasticcovers.Chassissizeabt.17x40x100mm.
TypicalReturnLossS11/impedance
Freespaceefciencyandmaximumgain,PWBgroundclearancearea6.00x11.00mm
© 2007. All Rights Reserved.
Pulse Finland Oy
Takatie 6
90440 Kempele, Finland
Tel: +358 207 935 500
Fax: +358 207 935 501
www.pulseeng.com/antennas
W3108 Datasheet version 2.1. 2.4 GHz Helical WiFi SMD Antenna. (11/07).
2.4 GHz Helical WiFi SMD Antenna
Ground cleared under antenna, clearance area 7.50 x 5.50 mm. Pulse Part Number: W3108
XZ-PLANE
Typical Free space Radiation Patterns
ZY-PLANE
XY-PLANE
© 2007. All Rights Reserved.
Pulse Finland Oy
Takatie 6
90440 Kempele, Finland
Tel: +358 207 935 500
Fax: +358 207 935 501
www.pulseeng.com/antennas
W3108 Datasheet version 2.1. 2.4 GHz Helical WiFi SMD Antenna. (11/07).
2.4 GHz Helical WiFi SMD Antenna
Ground cleared under antenna, clearance area 7.50 x 5.50 mm. Pulse Part Number: W3108
Recommended pad layout and guard distances
Feedlineshouldbedesignedtomach50Ωcharacteristicimpedance,dependingonPWBmaterialandthickness.
&#*bb
[gdb
VciZccV
H]jci^cYjXidg
[dgbViX]^c\
*%D]b[ZZYa^cZ
;ZZYeVY
h^oZ'#*bbm&#*bb
<gdjcY
gZbdkZY
[gdbVaaaVnZgh
(eXh&#&bb
Y^Vb]daZh
dcEL7
6ciZccV
&#*bb &#*bb
&bb
&#'bb
*bb
VciZccV
,#*bb
'#*bb
VciZccV
*#*bb