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How to draw and excite an impedance helix in HFSS?

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Erick_Lopes

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Hi friends!!
I´m new in HFSS and
I´m make a helix antenna for 2.45Ghz in HFSS and i´ve to make the feed, the excitation, but i saw the HFSS user guide and i draw the coax, if i change the lenght of the coax change the input impedance, how can i draw the coax with the correct lenght for this frequence?? or how excitate my antenna with the corrects parameters for this frequency??

i´m posting the draw of my antenna


Thank you!!
 

myemworld

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Hi Erick_Lopes,

I realize that it has been a while after you have submitted your question. I just want to make sure you have seen the "Helical Antenna" example created by Ansoft. As you may have seen you can can add a feed pin at the bottom of the helix and then feed it with a wave port backed by a copper box(you do that to be able to add the wave port internally).

I hope this helps.
Joline
 
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    orle

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ruchak

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Hi Erick_Lopes,

I realize that it has been a while after you have submitted your question. I just want to make sure you have seen the "Helical Antenna" example created by Ansoft. As you may have seen you can can add a feed pin at the bottom of the helix and then feed it with a wave port backed by a copper box(you do that to be able to add the wave port internally).

I hope this helps.
Joline

can you elaborate this?
 
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