Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!samsung!uakari.primate.wisc.edu!sdd.hp.com!hplabs!hpl-opus!hpnmdla!darrylo
From: darrylo@hpnmdla.HP.COM (Darryl Okahata)
Newsgroups: comp.lsi.cad
Subject: Re: Lossy transmission lines / QUAD ?
Message-ID: <3210002@hpnmdla.HP.COM>
Date: 22 Jan 91 20:44:29 GMT
References: <10377@pasteur.Berkeley.EDU>
Organization: HP Network Measurements Div, Santa Rosa, CA
Lines: 31

In comp.lsi.cad, jaijeet@ic.Berkeley.EDU writes:

> 	Has anyone heard of any circuit simulators (either commercially
> available or experimental) that simulate lossy transmission lines?
> In particular, I am told that there is a product or company called
> QUAD that does lossy line simulation. Does anyone know anything about
> this?

     There is UCB's Spectre 1a1 (previously called Harmonica), a
steady-state frequency-domain nonlinear simulator that can handle lossy
(& lossless) transmission lines, including microstrip lines.  It's
available from the UCB EECS/ERL.  As you're posting from Berkeley, you
should probably check it out.

     Hewlett-Packard also sells a greatly-enhanced version of Spectre as
part of it's Microwave Design System (for HP's, Sun's, Apollo's, &
386's).  If anyone wants more information, send email.

     EESof sells Touchstone (linear only) and Harmonica (linear &
nonlinear), two simulators that can handle lossy transmission lines.

     Super Compact also sells a simulator that can handle lossy
transmission lines (I think).

     -- Darryl Okahata
	UUCP: {hplabs!, hpcea!, hpfcla!} hpnmd!darrylo
	Internet: darrylo%hpnmd@hp-sde.sde.hp.com

DISCLAIMER: this message is the author's personal opinion and does not
constitute the support, opinion or policy of Hewlett-Packard or of the
little green men that have been following him all day.