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  1. #1
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    How to get Qe in HFSS

    when designing a cavity resonator filter by KQ method in HFSS v9.2, I simulate the single-port structure consists of the first resonator and the input port and get the phase of S11. I know we can directly get the Qe from the phase of S11 by the Macro in CST MWS.

    Could you tell me whether I can also directly get Qe from the phase of S11 in HFSS?

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  2. #2
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    Re: How to get Qe in HFSS

    You can't just get it directly to my understanding
    You have to go and use the field calculator to get results for the Q



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    Re: How to get Qe in HFSS

    It's very simple, dear burton. You need to use in Report field a Output Variable the next type:
    Qe=im(Y(1,1))/re(Y(1,1)).
    For this Variable you can make a plot or a table.
    Good luck!



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    Re: How to get Qe in HFSS

    This paper maybe helpful for you.


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    Re: How to get Qe in HFSS

    Quote Originally Posted by borich_03
    It's very simple, dear burton. You need to use in Report field a Output Variable the next type:
    Qe=im(Y(1,1))/re(Y(1,1)).
    For this Variable you can make a plot or a table.
    Good luck!
    Please correct me if I am wrong. I think it should be:
    Q=im(Z(1,1))/re(Z(1,1)).



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  6. #6
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    Re: How to get Qe in HFSS

    Quote Originally Posted by wlcsp
    Quote Originally Posted by borich_03
    It's very simple, dear burton. You need to use in Report field a Output Variable the next type:
    Qe=im(Y(1,1))/re(Y(1,1)).
    For this Variable you can make a plot or a table.
    Good luck!
    Please correct me if I am wrong. I think it should be:
    Q=im(Z(1,1))/re(Z(1,1)).
    You're right, also. And both of expressions are correct. You can use any formula, with Y or Z-parameters.



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