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Simulated S11 does not resemble measured S11 in HFSS model!!

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Lanus

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HFSS MODEL

Hey guys,
I have been trying to simulate (in HFSS) a 7 turn archimedean spiral antenna placed flush to a dielectric(oil). I have also fabricated the exact same antenna and taken measurements. The simulated S11(It is a one port network), does not resemble the measured S11 at all. Can somebody please help me out with this?I have been struggling with this problem with a while now and im very frustrated.I could upload my design if anyone could help me.
Thanks guys
 

purushottam

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HFSS

Pls post the . Then maybe we can help

Added after 54 seconds:

Sorry pls post the was what i was trying to say
 

snkhan

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Re: HFSS MODEL

If you can upload you model then i can try to help you
BR
 

Lanus

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Re: HFSS MODEL

Here is the file,it si in version 10,so i dont think it will run in earlier versions.
 

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