GC864 Hardware User Guide
1vv0300874 Rev.1 – 2010-03-29
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
Page 31 of 64
6.
Antenna
The antenna connection and board layout design are the most important part in the
full product design and they strongly reflect on the product overall performances,
hence read carefully and follow the requirements and the guidelines for a proper
design.
6.1.
GSM Antenna Requirements
As suggested on the Product Description the antenna for a Telit GC864-QUAD V2 /
GC864-DUAL V2 device shall fulfill the following requirements:
ANTENNA REQUIREMENTS
Frequency range
Depending by frequency band(s) provided by the
network operator, the customer shall use the
most suitable antenna for that/those band(s)
Bandwidth
for GC864-QUAD V2
70 MHz in GSM850, 80 MHz in GSM900, 170 MHz
in DCS and 140 MHz PCS band
Bandwidth
for GC864-DUAL V2
80 MHz in GSM900 and 170 MHz in DCS
Gain
Gain < 1,4dBi in GSM 850 & 900
and < 3,0dBi DCS & PCS
Impedance
50
Ω
Input power
> 2 W peak power
VSWR absolute max
<= 10:1
VSWR recommended
<= 2:1
Furthermore if the device is developed for the US market and/or Canada market, it
shall comply to the FCC and/or IC approval requirements:
This device is to be used only for mobile and fixed application. The antenna(s) used
for this transmitter must be installed to provide a separation distance of at least 20
cm from all persons and must not be co-located or operating in conjunction with any
other antenna or transmitter. End-Users must be provided with transmitter
operation conditions for satisfying RF exposure compliance. OEM integrators must
ensure that the end user has no manual instructions to remove or install the GC864-
QUAD V2 / GC864-DUAL V2 module. Antennas used for this OEM module must not
exceed 3dBi gain for mobile and fixed operating configurations.