Datasheet

© 2010 Microchip Technology Inc. Preliminary DS70651A-page 7
MRF89XAM8A
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 inches (8.6
cm)) 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.