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input/output impedence in Hspice (Read 2308 times)

brandano New Member Offline Posts: 5	input/output impedence in Hspice Feb 08^th, 2006, 3:38am Hi all, to calculate the input impedence of a RF circuit, in Hspice, is the only one way to make a .NET analysis?? I mean, whit just an .AC analysis I think it's impossible, because Hspice do not have the function to calculate the real part and imaginary part of an expression...........I suppose! thanks, davide
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Geoffrey_Coram Senior Fellow Offline Posts: 1999 Massachusetts, USA	Re: input/output impedence in Hspice Reply #1 - Feb 8^th, 2006, 5:38am You can print the imaginary part of a voltage or current in an ac analysis: .print ac vi(n1) With a little creativity, you might be able to re-write your expression from imag(f(v(n1), v(n2), ...) into g(vi(n1), vi(n2), ...)
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