ESP8266 Community Forum

The datasheet of ESP8266 says that the impedance matching circuit should of 50 ohms. The ESP-01 uses a L-C-L filter. The value of capacitor is 5.6pF. What should be the value of incutors? How do I calculate it? The inductors are named "NC", what does that mean?

Please help me.
Thanks in advance

Impedance matching circuit for ESP8266 is base on the PCB stackup. if PCB is 1mm high is different from 1.6 mm PCB. Or 2 layer or 4 layer.
And it also based on distance from top layer to GND below.
Height of microstrip wire going to antenna. ( 1 Oz, 0.5 Oz)
Distance for microstrip to GND on both sides
PCB material Dielectric constant (as 4.4...)
So, my best offer is to copy existing design and after production use L C component according to recommendation from RF expert that use VNA device to check your PCB.
see http://tinyurl.com/oromxl4