User's Manual

GE866-DUAL Hardware User Guide

1VV0301051 Rev. 2 – 2014-04-07

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Reserved. Page 36 of 82

Mod. 0805 2011-07 Rev.2

• The ground around the antenna line on PCB has to be strictly

connected to the Ground Plane by placing vias every 2mm at

least;

• Place EM noisy devices as far as possible from GE866-QUAD

antenna line;

• Keep the antenna line far away from the GE866-QUAD power

supply lines;

• If you have EM noisy devices around the PCB hosting the

GE866-QUAD, such as fast switching ICs, take care of the

shielding of the antenna line by burying it inside the

layers of PCB and surround it with Ground planes, or shield

it with a metal frame cover.

• If you don't have EM noisy devices around the PCB of GE866-

QUAD, by using a micro strip on the superficial copper layer

for the antenna line, the line attenuation will be lower

than a buried one.