If it is sufficient, why not use to sets of concentric half circles and move
the one half to the other by one circle. ( sorry my english meets it's
limits )
This is not exactly a spiral, but maybe a good enough inductor.
Georg
>
>
> 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
>
... snip>
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