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Simulate the power conversion efficiency of a RF-DC rectifier

MenghanSun

Dear all,

I am trying to simulate the power conversion efficiency of a RF-DC rectifier, the power harvester used in UHF RFID tag. The structure of the rectifier is typically something like a dickson charge pump.

So, the antenna picks up the EM wave, convert it to voltage, feed it into the rectifier, and the rectifier convert it into DC to a resistive output load.

To model the antenna, should I use a port element, or ideal voltage source? I wish to do an input power sweep, with the ideal voltage, I can only sweep the input voltage.

Any help is greatly appreciated, 
thanks,

Cheers,

Menghan

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