I have to protect my RFiD equipment against ESD pulses that are being transmitted to my circuit through my RFiD coil. The problem is that the capacitance of ESD protecting diodes change the tunning frequequency of the LC ressonant circuit, and the RFiD transmission stops working. Does anybody have an idea of how I can protect RFiD coils against ESD, without changing the capacitance of the LC ressonant circuit?? Thanks a lot!
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