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Recent content by asondas

  1. A

    coaxial feeding printed antenna

    the blue structure is supporting the substrate its epsilon is nearly 1. it doesnt change the resonance frequency
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    coaxial feeding printed antenna

    here are the photos af the manufactures antenna
  3. A

    coaxial feeding printed antenna

    the manufacturing seems ok, but i dont know why are the results so different. as you see, i modelled coax in simulation and get good results. in practical can i get these results by coax or must i use a balun structure? can you say anything about this? thanks for the help
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    which version of HFSS is working on vista?

    im using windows vista. i want to install HFSS. which version of HFSS is working on vista?
  5. A

    coaxial feeding printed antenna

    sorry; i atteched wrong result. this is the true one
  6. A

    coaxial feeding printed antenna

    hello; im going to design a printed antenna withcoaxial feeding resonants at 3 and 5.5 GHz at the same time. i modelled this antenna with cst and hfss respectively. simulation results are fitting. so i fabricate this antenna and get the measurement results. but there are differences between...
  7. A

    printed dipole antenna with balun

    hi; i thing you make some wrong in your project. i modified file. here is the right form. best regards.
  8. A

    infinite array antenna (HFSS)

    anyone can help me?
  9. A

    infinite array antenna (HFSS)

    how can i model an infinite array antenna by using HFSS? could you send an example of this. regards...
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    where am i doing wrong? (CST antenna model)

    hi shameemkabir; how can i know, which port must i use? when i looked the antenna design example in cst, waveport is used in it.
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    where am i doing wrong? (CST antenna model)

    thanks for your help
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    where am i doing wrong? (CST antenna model)

    hi; im going to remodel the referance antenna in the paper named "Printed Double-T Monopole Antenna for 2.4/5.2 GHz Dual-Band WLAN Operations" (IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 51, NO. 9, SEPTEMBER 2003). the antenna has only one resonant frequency between 2130-2535MHz, but...
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    display the impedance characteristic of an antena - CST

    thanks for your helps angolaX
  14. A

    display the impedance characteristic of an antena - CST

    hi; i want to get the impedance characteristics of an antenna by usiing CST-microwave studio. but i dont know how can i do that? thanks for helps.
  15. A

    absorber design in HFSS

    absorber in hfss is there anybody there to help me?
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