Antenna; On-Board Chip Antenna - Waveshare WIFI232 User Manual

WAVESHARE ELECTRONICS

3.3 Antenna

3.3.1 On-board Chip Antenna

WIFI232 supports a built-in antenna options, when customers choose a built-in antenna, must comply
with the following built-in antenna module placement of notes and general rules:

Be in the user's PCB board, and the red region ( 6X8mm ) corresponding to the region cannot be
placed components and with GND;

Antenna must away from the metal, at least to the distance around the higher components above
10MM;

Antenna cannot be shielded by any meal enclosure; All cover, include plastic, shall away from
antenna at least 10MM;
Figure 9 WIFI232 Mechanical Size
Figure 10 WIFI232 Chip Antenna Keep Out Region
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WIFI232 User Manual