RN131C Datasheet, PDF (8/18 Pages) List of Unclassifed Manufacturers – RN-131G & RN-131C 802.11 b/g Wireless LAN Module

RN-131-DS
 
DESIGN CONCERNS  
The following sections provide information on designing with the RN-131 module, including radio interference, grounding,
solder reflow, connection status, etc.
Minimizing Radio Interference
When integrating the WiFly module with the on-board chip antenna, ensure that the area around the chip antenna end of
the module protrudes at least 6 mm from the motherboard and any metal enclosure. If this placement is not possible, use
the on-board U.FL connector to route to an external antenna.
The 8.5-mm area under the module’s antenna end should be kept clear of metallic components, connectors, vias, traces,
and other materials that can interfere with the radio signal. See Figure 6.
Figure 6. Antenna Clearance
20 mm
Keep Metallic Components,
Connectors, Vias, & Traces
Away from Antenna Area
6 mm
8.5 mm
RN-131
Top View
 
www.rovingnetworks.com
Version 3.2r 4/9/2012
8