There's also Appcad from Agilent, a free program running under windows
95/98/nt which has good impedance calculators for microstrips, striplines ,
matching networks, noise and intercept point calculators etc . I am in no
way affiliated with them but am using Appcad with good results . For more
complex stuff you can use Sonnet Lite which is also free.

Best Regards,
Matt Tudor , MSEE
Elmar Technologies
http://personal.lig.bellsouth.net/~mariusrf          consulting
http://www.rfdatacorp.com           spread spectrum radio telemetry

-----Original Message-----
From: Samuel Cox "Sam" <[EMAIL PROTECTED]>
To: Protel EDA Forum <[EMAIL PROTECTED]>
Date: Thursday, August 23, 2001 1:08 PM
Subject: [PEDA] Resource for design (inpedance calculator etc.)


>Tim,
>
>below are some very valuable resouces,
>
>http://www.robertsondne.com/
>
>
>http://www.ultracad.com/articles.htm
>
>
>http://www.merix.com/resourcecntr/res_intro.html
>
>
>UltraCad as well as Chris Robertson's site have impedance Calculators.
>
>Merix has a great DFM manual..
>
>
>Enjoy....
>
>Sam Cox
>
>


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