Frequency dependent component realization in Orcad Pspice

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Joined Aug 4, 2016
I am trying to simulate a simple electrical equivalent circuit of an antenna which includes inductors, capacitors and resistors in Orcad pspice. The problem is the resistance value is frequency dependent (I am working in the frequency range 3 to 10 GHz).I know the frequency depended equation of resistance but i dont know how to implement that equation in PSPICE. I tried PARAM component which allows us to assign parameters but it doesn't work as my variable parameter is frequency.I want the graph of voltage across capacitor vs frequency so, my analysis should be AC analysis where i should declare the range of frequencies.
Can anyone help me, how to realize the frequency dependence of resistance? Thank you in advance.