I am designing the NFC antenna and using PN532 NFC controller for a project. I'm not a expert about NFC or RF circuits.
I have some questions about Rmatch.
About Rmatch I understand that need to be measure with an impedance or network analyzer. But, for prototype design, with what value of Rmatch I can obtain values for matching? What value of Rmatch should I start with?
Is there only a Rmatch = 50 Ohms or is there a range?
If there is a range, what is the range?, and, how affect a greater or lesser value of Rmatch to the NFC circuit?
Thanks for your replies