Henrik,
sorry for the delay in my response, meetings and other things kept
me from taking the time to answer your query. I am not sure if there are
that many others on the listserver who do microwave designs so I will give
my overview for Protel.
1) Protel does not work great for microwave design. There are several
things which could be better for such designs. Then again, unless you are
looking at spending $20 -50K I don't think any other package would do that
much better. If you could justify a lot more money I would be looking to
investigate Pantheon by Intercept. It seems to be designed for doing RF
circuits and thus probably overcomes some of the RF or microwave
shortcomings of lesser packages.
2) Most of our designs are actually simulated in RF tools before they
ever reach PCB stage. Most of what I do on the microwave side is get their
designs into Protel as accurately as I can through importing DXF or Gerber
patterns.
3) In schematic there are some real issues with connectivity and
netlists for microwave design because it is not so simple or reliable to
implement connective copper features which are not just a straight
connection wire. Commonly I used a visually descriptive schematic for
presentation, then I gut it and use wires to obtain correct connectivity for
the netlist on the PCB.
If you have any more specific questions, feel free to email me
directly.
Brad Velander,
Lead PCB Designer,
Norsat International Inc.,
#300 - 4401 Still Creek Dr.,
Burnaby, B.C., V5C 6G9.
Tel. (604) 292-9089 direct
Fax (604) 292-9010
website www.norsat.com
> -----Original Message-----
> From: Henrik Thurfjell [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, June 13, 2001 8:02 AM
> To: Protel EDA Forum
> Subject: [PEDA] Microwave PCB layout
>
>
> Hi all Protel fans
>
> How well can Protel handle microwave PCB layouts. You know,
> as beveled corners of strip lines.
> The default rounded trace end is a major obstacle in this case.
> Can that be changed to a square end?
> Can the mitering of corners be changed to "beveling"?
>
> Regards
> Henrik
>
> ============
> Henrik Thurfjell
> Megatron Engineering
> 1149 Susan Way, Sunnyvale CA 94087
> Direct 408 737 1718
> FAX & Messages 408 739 2429
> email: [EMAIL PROTECTED] or [EMAIL PROTECTED]
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