hardware
RF Filter Design for ESP32-S3, Part 1: The Ideal Filter and First Layout
An ESP32-S3 RF filter that passes simulation can still fail on the fabricated board. Part 1 of this series builds the foundation: a CLC PI filter designed in CST Studio Suite, optimized with CMA-ES across the 2.4 GHz Wi-Fi channels, and carried into a controlled-impedance Altium layout.