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  1. S

    phase difference of coupler ports

    hi I want draw diagram of phase difference between port 2 and 3 of a 90 degree coupler. but I don't know how to do it. this is the phase of port 2 and 3 in hfss. but I cant show the difference of it
  2. S

    Generalized scattering matrix method

    hi.i want some text and good basic information about Generalized scattering matrix method.could anyone help me plz?
  3. S

    Generalized scattering matrix

    hi.i want some text and good basic information about Generalized scattering matrix method.could anyone help me plz?
  4. S

    Slot antenna in SIW Air box distance

    thx danieldani.but how to decide which simulating result is desire?
  5. S

    Slot antenna in SIW Air box distance

    hi.radiation box should be at least λ/4 away from radiation surface.
  6. S

    how to design siw in hfss

    thx for help ferdows.
  7. S

    how to design siw in hfss

    thx ferdows.is it true if i design cylinder and dont subtract it only metalize it?
  8. S

    how to design siw in hfss

    i am learning siw structure and specially siw antenna.i want design a siw slot array antenna in hfss but dont know how to draw vias?can u help me?
  9. S

    how to design siw in hfss

    hi. how can i design a siw in hfss?how to draw vias?could any one send me a hfss siw file? thx
  10. S

    txt file for custom array in hfss

    hi. i am designing a nonregular antenna array in hfss.but i dont know how i should use custom array.i dont know how to enter current and phase in txt file for custom array.if anyone have a txt file for a array plz send to me for an example. thx
  11. S

    new topics in antenna and microwave technology

    thx ferdows. if anyone have pdf or text about SIW structure plz send to me.
  12. S

    SIW structure antenna and itscombination with metamaterial

    thx ferdows. if anyone have pdf or text about SIW structure plz send to me.
  13. S

    new topics in antenna and microwave technology

    hi. i am searching for new technologhy in antenna for my final project in university.what is new topics in antenna and microwave? plz help
  14. S

    dipole array designing in hfss

    thx for replies. i changed the setup for far field radiation and my answer become true.:smile:
  15. S

    dipole array designing in hfss

    thx for replies.why this array pattern with cst studio is not directive as narrow as with hfss? this is my project file.is my array setup is true? plz help.thx
  16. S

    dipole array designing in hfss

    hi.i am designing a dipole array with 11 element in hfss.but my radiation pattern is very norrow and directive.i am newre in hfss.wich type of boundary i shoud use?Pml or radiation?if anyone have such a project with dipole please help to me. thx
  17. S

    coax cavity measurment...plz help

    hi. how can we calculate gap size and inner conductor for a resonant frequency in a coax cavity resonator like this in attachment file?and if we want to coupled 2 of this filter with aperture how could we measure coupling coeficient for aperture? plzz help me soon.it is very important. thx
  18. S

    coaxial cavity filters - need documents, information

    coaxial cavity filters hi. i am working on coaxial cavity filters for my final project in undergraduate term of study. have anyone any text or information abt this type of filter and abt equivalent circuit of coupled coaxial cavity filters? thx

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