User's Guide

LE866 HARDWARE USER GUIDE 1vv0301210 Rev.0 Preliminary 2015-09-02 46 of 68
Reproduction forbidden without Telit Communications PLC written authorization All Rights Reserved
Antenna Requirements
Main Antenna
The antenna connection and board layout design are the most important aspect in the full product design
as they strongly affect the product overall performances, hence read carefully and follow the
requirements and the guidelines for a proper design.
The antenna and antenna transmission line on PCB for a Telit LE866 device shall fulfil the following
requirements:
Item
Value
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
LTE Band IV(1700) : 445 MHz
LTE Band XIII(700) : 41 MHz
Impedance
50 ohm
Input power
> 24dBm Average power
VSWR absolute max
≤ 10:1 (limit to avoid permanent damage)
VSWR recommended
≤ 2:1 (limit to fulfill all regulatory requirements)