MRF89XAM9A_12 Datasheet, PDF (6/36 Pages) Microchip Technology – 915 MHz Ultra Low-Power Sub-GHz Transceiver Module

MRF89XAM9A
FIGURE 1-5:
MOUNTING DETAILS
Edge of PCB
0.470”
0.4”
Host PCB top copper ground plane
(antenna counterpoise): Extend the
host PCB top copper ground plane
under and to the left and right side
of the module at least 0.4 inches
(1 cm) for best antenna
performance.
Keep area around the antenna,
approximately 3.4” (6.8 cm), be
kept clear of metallic objects for
3.4”
best performance.
3.4”
0.4”
DS75017B-page 6
Preliminary
 2011-2012 Microchip Technology Inc.