User's Manual

Table Of Contents
MRF89XAM9A
DS00000A-page 6 Preliminary © 2011 Microchip Technology Inc.
FIGURE 1-5: MOUNTING DETAILS
3.4”
3.4”
0.4”
0.4”
Edge of PCB
0.470”
Keep area around antenna
(approximately 3.4 (6.8 cm)
inches) clear of metallic structures
for best performance
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.