Espressif Systems ESP32-C6 Series Hardware Design Manuallines page 21

3 PCB Layout Design
If PCB antenna could not be placed outside the board, please ensure a clearance of at least 15 mm around
antenna area (no copper, routing, components on it), and place the feed point of the antenna closest to the
board. If there is base board under the antenna area, it is recommended to cut it off to minimize its impact on the
antenna. Figure 16 shows the suggested clearance for modules whose antenna feed point is on the right.
Unit: mm
: Clearance Area
Min15 Max 2
Base board
Figure 16: Keep-out Zone for ESP32-C6 Module's Antenna on the Base Board (antenna feed point on the
right)
When designing an end product, attention should be paid to the interference caused by the housing of the
antenna and it is recommended to carry out RF verification.
As a conclusion, please be noted it is necessary to test the throughput and communication signal range of the
whole product to ensure the product's actual RF performance.
Espressif Systems 21
ESP32-C6 Series Hardware Design Guidelines v1.0
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