Magnetic field in the Far-field

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi.

 

I am designing a simple half-wavelength dipole antenna. I want to request the measurement of the magnetic field in the far field. There is only E-field under the quantity from PostFeko.

Can you tell me how to request the H field measurement?

Thanks.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited February 2017

    Hello,

     

    One options is to use the near-field requests, but place the points in the far field zone. The you can plot both E- and H-field at the specific distance that you have requested. The near-field can be set up with spherical coordinates.

  • JIF
    JIF
    Altair Employee
    edited February 2017

    Hello,

     

    There is also a very simple relationship between the E and H fields in a TEM wave and thus using the wave impedance and a cross product you can calculate the H field from the E field. POSTFEKO does not make this available since this is the first time that someone has requested (or even asked about) the feature as far as I know.

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