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measuring varactor cap. in ADS

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alizadeharand

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can anybody tell me how to measure varactor capacitance vs bias voltage in ADS?
thanks.
 

mengcy

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ha,I just learned a very quick method to test the varactor.
see the attachment.
do ac analysis and plot the ac magnitude of the current in the iprobe.
the current at frequency f : I=2*pi*f*C*V.
so the capacitor can be calculated.
 
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