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Recent content by abdullah_nauroze

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    helical antenna in CST

    yeah that's exactly what i am trying to do but when you rotate the profile, i can't get a helix and how can i fix the number of turns. its way easier to make it in HFSS than CST but exporting HFSS model to CST doesn't allow it to be modified
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    helical antenna in CST

    hi can anyone tell me how to draw a helix in CST MWS. I can't figure out the points we need to enter.
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    HFSS to CST exported file simulation problem

    hi, I have CST 2008 and HFSS v11. CST 2008 supports transfer for HFSS files directly. but as earlier versions, it doesn't allow changes in the structure. I had memory shortage problems in HFSS so I tried running it on CST as CST handles memory problems in a better way. now when i export the file...
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    How to draw helical wire in HFSS?

    drawing helix hfss draw a line or a circle and then use the helix command and mention the different parameters.
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    Helical antenna matching problem in HFSS

    you need a quarter-wave matching stripline to compensate 140 ohms of helix with 50 ohms of coaxial line. you can use the txline software to calculate the stripline width etc. good day
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    impedance of helical antenna

    hi i know the relation to find the impedance of helical antenna according to kraus is 140*C/lambda for axially fed antenna plz tell me is this true for any conductor size, any number of turns for a particular central frequency. and how to check impedance of helix of in HFSS? thanks in advance
  7. A

    4GHz helical antenna design

    hi i have tried it but it still doesn't work. How much should be the ground clearance for a 4GHz antenna
  8. A

    4GHz helical antenna design

    i am having problems designing 4GHz helical antenna. I tried tuning it using 7.5 mm clearance but it didn't work so i did it on 1mm and it tunned ok but the E field plot isn't really nice. The fields should be enforcing each other and it should be confined to the helix but no matter what i do...
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    HFSS tutorials including antenna

    hi i don't have enough points can you send me through e-mail........... nauroze@yahoo.com thanks in advance
  10. A

    helix antenna design problem in HFSS

    hi everybody, I am new at helix antenna. I have been trying to make a helix antenna for 4GHz frequency. I have made the quater-wave transformer by "txline" software. with that i got the width of the stripline to be 16.6 mm. The helix has to be spaced 7.5mm above the ground as lambda=75mm and the...
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