Overview
Practical PCB antenna layout rules for ESP32, LoRa, WiFi and embedded RF products.
Design checklist
- Keep copper clearance around the antenna area.
- Do not route traces under PCB antennas unless the antenna vendor allows it.
- Follow the module or antenna reference layout exactly.
- Keep batteries, displays, metal parts and cables away from the antenna zone.
Practical notes
RF layout is sensitive to trace geometry, return current, grounding, enclosure materials and nearby components. Always compare your layout with the RF module or antenna manufacturer reference design.
Common mistakes
Common mistakes include routing under antennas, broken ground return paths, long matching network traces, poor connector grounding and tuning before the final enclosure is built.