Espressif ESP32--S3 Series, Hardware Design Manuallines

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CONFIDENTIAL
3 PCB Layout Design
3.2 Positioning a Module on a Base Board
If module-on-board design is adopted, attention should be paid while positioning the module on the base board.
The interference of the base board on the module’s antenna performance should be minimized.
The module should be placed as close to the edge of the base board as possible. The side of the module
carrying the on-board PCB antenna should be placed outside the base board whenever possible. In addition, the
feed point of the antenna should be closest to the board. In the following example figures, positions with mark
✓
are strongly recommended, while positions without a mark are not recommended.
1 2 3
4
5
Base board
Feed Point
Figure 12: Placement of ESP32­S3 Modules on Base Board (antenna feed point on the right)
1 2
3
4
5
Base board
Feed Point
Figure 13: Placement of ESP32­S3 Modules on Base Board (antenna feed point on the left)
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ESP32-S3 Series Hardware Design Guidelines v1.0