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- Newsgroups: comp.cad.cadence
- Path: sparky!uunet!usc!snorkelwacker.mit.edu!bloom-picayune.mit.edu!athena.mit.edu!solman
- From: solman@athena.mit.edu (Jason W Solinsky)
- Subject: Re: Lossy Xmission lines; Attn: MARK JOHNSON
- Message-ID: <1992Jul26.094512.23770@athena.mit.edu>
- Keywords: Lossy Xmission lines; EMI/ EMC aspects.
- Sender: news@athena.mit.edu (News system)
- Nntp-Posting-Host: m37-318-2.mit.edu
- Organization: Massachusetts Institute of Technology
- References: <25JUL199220120717@vax2.concordia.ca>
- Distribution: na
- Date: Sun, 26 Jul 1992 09:45:12 GMT
- Lines: 28
-
-
- |> Thanks for your questions. The reason I mentioned such codes, was not that
- |> I have hordes of information on them. The parameters you mentioned are just
- |> the ones that are getting attention in the recent times. I am not at all in
- |> a postion to make authorative comments on your questions. However, your
- |> questions fall into the broad category of EMC analysis of VLSI circuits that
- |> are connected via multiconductor transmission lines as high-speed interconnects
- |> as carriers of both analog (continuous) and logic (digital) waveforms. I had
- |> found numerous articles on IEEE Transactions on Electromagnetic Compatibility
- |> addressing this issue. The papers I looked into indicate a paucity in the
- |> work done for EMC planning in such systems. (The IEEE-T-EMC, May 1992 also
- |> discusses this. BTW, there is a very good review article on the EMI/EMC effects
- |> in such circuits.) IMHO, cross-talk models, signal distortions are the major
- |> effects studied by several researchers for the parameters you have questioned.
- |>
- |> My question: Does Cadence model accurately multiconductor xmission lines to
- |> consider EMI/ EMC effects ?
- |>
- |> IMO, the answer is NO. The proof: I have appended a list of refernces that I
- |> had collected earlier. My interest in this area is really academic - and is
- |> just out of curiosity - to know what's latest in CAD of microwave circuits.
-
- I think SuperCompact has some EXTREMELLY accurate software for modeling this.
- Alas, SuperCompact won't give it to us for free :-( . They have been making the
- stuff for quite a while though. I recently read a thesis from '84 in which
- the software had been used at a TI labratory.
-
- Jason W. Solinsky
-