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https://oshwlab.com/jyesmith/expresslrs-gemini-tx_copy
Design Notes/Justifications
Via Sizing & Stitching
The following app note was referenced for stitching the GND pours around the RF sections: https://www.infineon.com/dgdl/Infineon-AN91445_Antenna_Design_and_RF_Layout_Guidelines-ApplicationNotes-v09_00-EN.pdf?fileId=8ac78c8c7cdc391c017d073e054f6227
Larger vias used for the stitching to provide more copper, providing better conduction capacity & continuity between planes (larger hole size = more copper around circumference of cut through plane)
Smaller vias used for signals and other areas to make it easier to fit vias closer together, i.e. for ESP signal fanout, due to large hole to hole clearance of 0.5mm required by JLCPCB
Parts from https://oshwlab.com/jyesmith/expresslrs-gemini-tx
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