[SI-LIST] Re: S-Parameter and Harmonics Balance Analysis

  • From: Ray Anderson <ray.anderson@xxxxxxxxxx>
  • To: darshanmehta2k@xxxxxxxxx, si-list@xxxxxxxxxxxxx
  • Date: Mon, 13 Dec 2004 08:40:57 -0800


The following just dusts the surface of the topics you inquired about.

Of the 4 "methods" you have listed, only Harmonic Balance and Z-domain 
analysis are actually  analysis algorithms,. S-parameters are merely a 
means of representing the transfer characteristics of frequency 
dependent data and the Laplace transform is a an integral transform that 
has great utility in solving differential equations and problems that 
can be represented as such.

Harmonic Balance simulation is basically a frequency domain technique 
that can handle non-linearities in circuit devices. It finds quite a bit 
of use in RF and microwave power circuit analysis.

Z-domain analysis is a means to analyze a sampled data system utilizing 
the z-transorm. The z transform is the discrete time analog of the 
laplace transform. Data is manipulated in the discrete time (or Z 
domain) as opposed to the continuous time S-domain utilized with the 
Laplace transform.

For lots of more detailed discussion on these topics do a Google search 
on your topics and you will be rewarded with more resources on the 
topics than you probably are prepared to read.

Ray Anderson
Senior Signal Integrity Staff Engineer
Xilinx Inc.

Darshan Mehta wrote:

>Hi All,
>There are various methods like S-Parameter, Z- Domain analysis, Lapalace 
>Transform, Harmonic Balance analysis for performing simulation in Frequency 
>domain. Could you please tell me which one is the best in which scenario? Many 
>simulators use S-Parameter and Harmonic Balance method for Analog simulation 
>Technique but I want to know why other techniques are not popular. Please tell 
>me which method is the accurate or please send me the link where I can get 
>this information. Thanks.
>Best Regards,
>Darshan Mehta
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