network analyzer

Hi everyone, I want to adjust the natural frequency of my NFC-circuit in order to optimize the perfomance. Maybe the question is too easy, but I'm new to the usage of a netwerkanalyzer. I want to do the Antenna tuning measurements as described in the application note in the appendix (see chapter...

Hello, I have a problem which I can't find the solution. It's related with the determination of the bodeplot of a circuit. According to my bodeplot in the simulation, the flat part of the magnitude plot is -23.02 dB (Simulation.PNG) and the cut-off frequency is equal to 17.67 MHz whereas the...