How to get Qe from the phase of S11 in HFSS?

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burton

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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?
 

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
 

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!
 

Re: How to get Qe in HFSS

This paper maybe helpful for you.
 
Re: How to get Qe in HFSS

borich_03 said:
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)).
 

Re: How to get Qe in HFSS


You're right, also. And both of expressions are correct. You can use any formula, with Y or Z-parameters.
 

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