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  1. #1
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    Differential Microstrip Antenna Simulation in HFSS (Incorrect Results)

    I have designed a dual layer differential microstrip antenna .This is my first HFSS simulation model and also I am very new to Antenna theory. This was designed based on a research paper . The model is running but the results aren't as they should be. (Like VSWR is highest at working frequency of 900 MHz; real and imaginary part of Z0 are coming zero for all frequencies.

    Can someone kindly check this and say where is the error in this design. ? I have attached the HFSS file and the VSWR plot

    •   Alt9th March 2016, 17:44

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  2. #2
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    Re: Differential Microstrip Antenna Simulation in HFSS (Incorrect Results)

    Hi
    You should put the Radiation Boundary at least lambda/4 away from the radiating parts of the structure. Calculate the distance and draw a bigger radiation box.



    •   Alt10th March 2016, 07:13

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  3. #3
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    Re: Differential Microstrip Antenna Simulation in HFSS (Incorrect Results)

    Hi rizoeda,

    Thank you for your response. Yes I implemented it and also my model was incorrect and made some changes. I am getting realistic results now.
    But the main problem was that I was getting linear graphs of this kind. It happened because I added only a few steps in my frequency sweep. Its solved as of now.

    Best Regards



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