Hello,
Im currently working on a custom board that contains a ESP32-S2FH4 and 2 external WIFI antennas using a AS179-92LF as a switch.
I was looking for the impedance matching point of the pin 2 LNA_IN but I found on an old doc (34 + j5) and in a new one (35 + j0).
I am really confused and I cannot calculate a matching network without the port1 (chip pin) impedance.
Can someone help me out to get the right values for the pi matching network assuming that the external antenna is already matched to 50 ohms ?
Thanks,