MRF24WB0MA_13 Datasheet, PDF (9/38 Pages) Microchip Technology – MRF24WB0MA/MRF24WB0MB Data Sheet 2.4 GHz IEEE 802.11b™

MRF24WB0MA/MRF24WB0MB
The MRF24WB0MA has an integrated PCB antenna.
For best performance, mount the module on the PCB
without metal obstructions in the keep out area. The
antenna is tuned to have FR4 PCB material
underneath the module. Do not “cut-out” host PCB
material under the antenna. Figure 1-4 shows the
recommended host PCB footprint for the module.
FIGURE 1-4:
RECOMMENDED HOST PCB FOOTPRINT
Note 1: The “Note 1” demarcation specifies the host PCB copper plane “keep-out” area on underlying
board layers. Users can route surface escape traces in this area. The module has exposed
copper test points on bottom side in the “keep out” zone. Ensure that there is no exposed cop-
per on mounting board that may short these.
 2010-2013 Microchip Technology Inc.
DS70632C-page 9