Simulating 4D antenna array (time modulated array)

oussama1
oussama1 Altair Community Member
edited October 2020 in Community Q&A

hello everyone

i would like to ask you if it is possible to simulate 4-D antenna array by using FEKO software. since 4-D antenna array uses time (off-on switches), time domain solution is needed.

can we use FDTD to simulate this 4-D antenna array ?

thank you

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Answers

  • oussama1
    oussama1 Altair Community Member
    edited October 2018

    hi,

    I m still waiting for an answer, please

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2018

    Hi @oussama1

     

    Currently, FEKO does not support non-linear components like switches. However, it is possible to solve the 2 scenarios independently using 1 model for the switch on state and 1 model for the switch off state.

  • oussama1
    oussama1 Altair Community Member
    edited November 2018

    Hi again

    is it possible to use a periodic function in time analysis in post feko?  because the time modulated linear array (TMLA) uses periodic sequences (on-off).

    it means that I simulate the antenna array in large enough range of frequencies, then in post feko I use the required periodic function for each element. is that possible?  if not, I think you should do it possible in future versions of feko because it is so important in simulating TMLA. 

  • JIF
    JIF
    Altair Employee
    edited December 2018

    Hi
    This is possible and is exactly what time analysis in POSTFEKO does. The analysis is based on FFT/IFFT and thus the signal is inherently periodic (you can't avoid it).

  • oussama1
    oussama1 Altair Community Member
    edited January 2019

    Can you just explain how can we generate square periodic function in POST FEKO?

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