User's Manual

Table Of Contents

GC864 Hardware User Guide

1vv0300733 Rev.12 – 2009-06-04

7. 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.

7.1. GSM Antenna Requirements

As suggested on the Product Description the antenna for a Telit GC864-QUAD / PY

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 70 MHz in GSM850, 80 MHz in GSM900, 170 MHz in

DCS & 140 MHz PCS band

Gain

Gain < 1,4dBi in GSM 850 & 900 and < 3,0dBi DCS & PCS

Impedance

50 

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 / PY module. Antennas used for this OEM module must not exceed 3dBi gain

for mobile and fixed operating configurations.