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Re: Freqeucny Dependent resistor


 

An emphatic yes. In one of my courses, Network Synthesis, one learns that for minimum phase networks (no zeros in the right half plane), the phase response of the network can be determined from the magnitude frequency response. As to A.S.'s remarks, I do not believe you have a physically realizable circuit by replacing a Laplace transform by its magnitude response. Complex poles and zeros need to occur in pairs in order for the time function to be a real valued function -- and to have a physically realizable circuit.

Hubert

----- Original Message -----
From: John Fields
To: LTspice@...
Sent: Thursday, September 15, 2011 4:38 PM
Subject: Re: [LTspice] Re: Freqeucny Dependent resistor



On Thu, 15 Sep 2011 13:20:01 -0700, you wrote:

>I believe it is impossible to have a physically realizable resistor that is frequency >dependent and has no reactive component.

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Carbon button microphone?

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JF

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