Bill,
The final output of what ever method you use will be a series of points
in your gerber output. Knowing that, you must come to an agreement with
your RF designer on the resolution needed. Then I typically use MS Excel
to create a column of x,y points using formulas approximating the spiral
which I then massage (right in Excel) to gerber format. Export this to a
text file and import into Protel as gerber. Once you have the
export/import part down you should be able to sit down with your RF
designer and quickly tweak the design as needed.
John
Brian Guralnick wrote:
>
> This is something I may find useful. In the past, I made swiggly inductors as
>library components.
>
> Sorta like a continuous 'S', I found them useful as power chokes.
>
> _____________
> Brian Guralnick
>
> ----- Original Message -----
> From: "Brad Velander" <[EMAIL PROTECTED]>
> To: "'Protel EDA Forum'" <[EMAIL PROTECTED]>
> Sent: Tuesday, June 12, 2001 7:16 PM
> Subject: Re: [PEDA] Spiral trace construction?
>
> | Bill,
> | for anything even close to that, we draw or implement those in
> | AutoCAD or our RF simulation tools. Then we import (usually through Gerber,
> | possibly DXF import) into the PCB database. I haven't heard nor know of any
> | better manner to implement it in Protel.
> | For a continuous spiral I would not even have high hopes of using
> | these methods because I don't believe that Protel would have any means of
> | interpreting this structure into it's own database structure. Fortunately I
> | have never had to find out yet, the closest our engineers have come to
> | making me try this is a rectangular spiral (simple as straight lines).
> |
> | 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: Brooks,Bill [mailto:[EMAIL PROTECTED]]
> | > Sent: Tuesday, June 12, 2001 4:02 PM
> | > To: 'Protel EDA Forum'
> | > Subject: [PEDA] Spiral trace construction?
> | >
> | >
> | > Has anyone that works with RF and Protel ever had to make a spiral
> | > conductor? Is there a server or some such thing that makes
> | > one for you by
> | > defining the trace width and spacing etc... ? it should start
> | > at a center
> | > point and spiral out at a given rate with a given tracewitdh, etc...
> | >
> | > Bill Brooks
> | > PCB Design Engineer
> | > DATRON WORLD COMMUNICATIONS INC.
> | > 3030 Enterprise Court
> | > Vista, CA 92083
> | > Tel: (760)597-1500 Ext 3772 Fax: (760)597-1510
> | > mailto:[EMAIL PROTECTED]
> | > IPC Designers Council, San Diego Chapter
> | > http://www.ipc.org/SanDiego/
> | > http://home.fda.net/bbrooks/pca/pca.htm
> |
> |
--
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>John M. Cardone Electro-Mechanical Dsgn. Engr. Grp.
>M/S 278-100 Mechanical Engineering Section, 352
>4800 Oak Grove Dr. NASA / Jet Propulsion Laboratory
>Pasadena, Ca 91109
>Tel: 818.354.5407 MailTo:[EMAIL PROTECTED]
>Fax: 818.393.4860
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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