RFID chip impedance measurement

[eleazar_777]

Hi every one,
Does someone know how to measure the impedance of an RFID chip?
Thanks

 

[disisku_22]

Hi,
its very easy to measure in network analyzer, or if you have S parameter of chip u can easily find the impedance of chip by plotting S(S22) parameter on smith chart.

Br

 

[eleazar_777]

Hi thanks for you answare, yes I have VNA, my problem is the set up,

do you know a easy set up to measure the chip impedance


I have a CASCADE MICROTECH Summit 9000 Probe Stationation and a VNA,

Thanks

 

[FvM]

its very easy to measure in network analyzer

Most likely, it's not very easy. At first, you have to know, for which operation point you want to perform the meaurement. The chip behaviour must be generally expected non-linear and the impedance changing with operation condition.