Suppose I have PCB in metal chassis with 2 SMA connectors mounted on it. Let's say they are used for GSM and GPS.
How to protect against ESD and successfully pas FCC/CE? I couldn't find any TVS diode with such small capacitance at ~1.5GHz.
I've seen that some guys are using VVR on D+/D- signals on USB3.0. They should have capacitance significantly lower than 1pF. However, I am not sure about using them on this purpose.