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On simulating frequency dependance device by Orcad Pspice

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xzp

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Hi, thanks for reading.
Currently, I am encountering a simulation problem.
I want to simulate a resistor with a resistance that is frequency dependance. Because of the noise limitation, I can not use the normal R device in Pspice. Instead I use G device (Voltage --> current) in the analog library. For constant value of resistance, it is easily be achieve by setting the "Gain" in the properties. however, the resistance of the resistor is 5Meg/f where f is the frequency.
So how to set the gain or other parameter to simulate this frequency dependance resistor by using G device?
I appreciate your help much!

Added after 48 minutes:

I appreciate you guys help!
 

kender

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