User Manual

PRODUCT SPECIFICATION
POLYCOM
ED
2.0
DATE
29-06-2011
SIGN
HBR
Page 8 of 12
Model no.: KT4586
141993XX-DS
6. PCB integration & soldering
Recommended integration on the main PCB
In order to ensure proper coverage and to avoid detuning of the antennas, it is very important to
place the module in a free prober way on the main board and in relation to other surrounding
materials. As a “thumb rule”, keep a distance of at least 10 mm from the antenna element to
conducting objects and at least 5 mm to non-conducting objects - depending of the size. Keep in
mind that electrical shielding objects, even partly surrounding the antennas, will normally cause a
significant degradation of the coverage. Place the module at the corner of the main-board as shown
below. If the module has to be placed away from the edge of the main-board, then avoid
conducting areas in front of the antennas and make a cut-out in the main board underneath the
antennas as shown below. Keep solid ground on layer 2 out to the edges of the main board as
shown.