This antenna is for Wifi & Bluetooth on a custom board, using ESP32. For the Pi network I choose: C1: 1.2pF, C2: 1.5pF, L: 1.8nH.
I need some feedback, as this is the first time I have designed an antenna for ESP32.
Trace width from ESP32 to antenna: 0.33mm, copper clearance: 0.66mm. 4-layer PCB.