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design spiral using AutoCAD

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kaandee

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Hi friends
I want to design spiral using AutoCAD 2009. Any one know how can i design spiral in command window.
later it will be exported to CST MWS.

please give an idea to do

Thank you
 

House_Cat

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Here's a Lisp routine to make a spiral. If you have a newer version of AutoCad (2008-2009) the capability is built in - look for "Spiral" or "Helix" in AutoCad help
 

kaandee

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Hi House-cat

Thank you for reply.

I have tried to draw spiral using Helix command. then i have saved as .dxf file format. BUt when i import from CST MWS 2008, it says "Unable to read the spified file". Why it is happening.....is it not possible to import .dxf file.
I have save spiral which was designed by AutoCAD 2009 in .dxf file format.

Please help me

kaandee

Added after 5 hours 39 minutes:

hi house-cat
I have attached the design here with not finished.
After importing from AutoCAD to CST MWS, i don't know how to convert to component?
Is there any methods to make as components like substrate / ground

Thank you

kaandee

 

kaandee

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Hi House-Cat

I think, i have used wrong feeding techniques for spiral antenna. Can you tell me how can i feed for this spiral antenna?

thank you
 

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