[SI-LIST] Re: Preparing S-Parameters for Simulation

Quite true.  Nice guys.  Very good software!

wolfgang.maichen@xxxxxxxxxxxx wrote:
> Incidentally, the people behind the IdEM are more or less the same as the 
> authors in the paper Yuriy cited in his reply. Small world :-)
> Wolfgang
>
>
>
>
>
>
> "Timothy Coyle" <tim@xxxxxxxxxxxxxxxx> 
> 02/25/2009 09:17 AM
>
> To
> <wolfgang.maichen@xxxxxxxxxxxx>
> cc
> <si-list@xxxxxxxxxxxxx>, <si-list-bounce@xxxxxxxxxxxxx>
> Subject
> RE: [SI-LIST] Preparing S-Parameters for Simulation
>
>
>
>
>
>
> Hi Wolfgang,
> Thanks for the link. I haven?t heard of IdEM before but it does look like 
> a good tool that I will have to check out.
>  
> Best,
>  
> Timothy Coyle
> Editor In Chief
> XrossTalk Magazine
> 405 Western Ave #430
> South Portland, ME  04106
> Tel:  617.297.2566
> Fax: 207.510.8099
> Email: tim@xxxxxxxxxxxxxxxx
> http://www.xrosstalkmag.com
>  
>  
> From: wolfgang.maichen@xxxxxxxxxxxx [mailto:wolfgang.maichen@xxxxxxxxxxxx] 
>
> Sent: Tuesday, February 24, 2009 1:38 PM
> To: Timothy Coyle
> Cc: si-list@xxxxxxxxxxxxx; si-list-bounce@xxxxxxxxxxxxx
> Subject: Re: [SI-LIST] Preparing S-Parameters for Simulation
>  
>
> Hi Timothy, 
>
> you may want to check out the IdEM tool (
> http://www.idemworks.com/index.htm) - they put a lot of effort into 
> ensuring passivity and causality of their input data before creating any 
> macromodels. 
>
> Wolfgang 
>
>
>
>
>
> "Timothy Coyle" <tim@xxxxxxxxxxxxxxxx> 
> Sent by: si-list-bounce@xxxxxxxxxxxxx 
> 02/24/2009 09:51 AM 
>
>
> To
> <si-list@xxxxxxxxxxxxx> 
> cc
>
> Subject
> [SI-LIST] Preparing S-Parameters for Simulation
>  
>
>
>
>
>
>
>
>
> Hi,
> I am working on a tutorial for the next issue of XrossTalk Magazine about
> getting S-Parameter models ready for simulation. I see a lot of 
> S-Parameter
> models from lab measurements and simulation tools that have a lot of 
> quality
> issues (causality and passivity) and have to do a lot of clean up to make
> them suitable for simulation. I have my own bag of tricks I use as well as
> some good books on S-Parameter theory and application notes but I would 
> like
> to hear from other people what their approaches are or some good 
> resources. 
>
>
>
> For some particular specifics review the list below:
>
> .         What considerations should go into setting up a simulation tool 
> to
> extract an S-Parameter model? (bandwidth to be used, number of points,
> importance of linear spacing of points, starting at DC, etc) 
>
> .         A lot of tools will automatically "fix" causal and passivity
> issues or enforce them. What's the pros and cons for this? What do 
> engineers
> need to look out for when they do this?
>
> .         What's the best way to clean up a lab measured S-Parameter model
> with poor resolution?
>
> .         What type of quality checks should you perform on an S-Parameter
> model before simulating? (what do you look for in the S21 plots, do you 
> use
> smith charts, ect?)
>
>
>
> Thanks for any and all suggestions and links. 
>
>
>
> Best,
>
>
>
> Timothy Coyle
>
> Editor In Chief
>
> XrossTalk Magazine
>
> 405 Western Ave #430
>
> South Portland, ME  04106
>
> Tel:  617.297.2566
>
> Fax: 207.510.8099
>
> Email: tim@xxxxxxxxxxxxxxxx
>
> http://www.xrosstalkmag.com <http://www.xrosstalkmag.com/> 
>
>
>
>
>
>
>
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