Espressif Systems ESP32-C3 Series Hardware Design Manuallines page 18

3 PCB Layout Design
The module should be placed as close to the edge of the base board as possible. The PCB antenna area should
be placed outside the base board whenever possible. In addition, the feed point of the antenna should be closest
to the board, as shown in Figure
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Figure 12: Placement of ESP32­C3 Modules on Base Board. Antenna Feed Point on the Right
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Figure 13: Placement of ESP32­C3 Modules on Base Board. Antenna Feed Point on the Left
Espressif Systems
13 and Figure 12.
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Base board
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Base board
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ESP32-C3 Family Hardware Design Guidelines V0.5