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  1. #1
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    Monopulse tracking system in HFSS

    Hi all,

    I'm designing a monopulse tracking system. It consist of Rat-race monopulse comparator and a system of 4 dipole antennas. The comparator is working fine, designed in HFSS and measured. Now, the problem is that I want to receive a circular polarized wave. This means that antenna A has to be connected with cable length L, antenna B L + lambda/4, antenna C with L + lambda/2, and antenna D with L + lambda*3/4.
    I do not know if this will work with rat-race comparator, so I designed a HFSS model (see picture).
    The idea is to illuminate antenna with incident field port, and from imag and real part of S parameters at ports Azimuth, Elevation, and Sum calculate the resulting Azimuth, Elevation and Sum.
    My question is: if I place the IncPwave port at the top of the model, will I get the results at the ports on comparator at the bottom of the model. At first glance HFSS does not give me S parameters for IncPwave. I have never used IncPwave and I might be mistaken. What should I do?

    Thank you


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  2. #2
    Full Member level 2
    Points: 3,141, Level: 13

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    Re: Monopulse tracking system in HFSS

    Let me rephrase my question...

    If I use Incident Wave Port, how can I see what is induced at Wave Port exit?



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