Even and odd mode impedance in HFSS 11
时间：03-30
整理：3721RD
点击：
Seems the HFSS 11 or 12 has some changes in result report.
In HFSS 10 or ealier version, I see the method to extract the even and odd mode impedances of couple-line as follows in the previous post.
(1) Choosing the driven terminal (not driven modal);
(2) draw two terminal lines when setting the waveports;
(3) after simulation, you can get the differential impedance Zdiff and common impedance Zcomm. Then the even mode impedance Zeven = 2*Zcomm, the odd mode impedance Zodd = 0.5*Zdiff.
How about HFSS 11 or 12, does anyone have some idea?
Now I use driven modal, and set number of modes to 2, and get two different impedances. Are they the even/odd impedances I need?
Also, I find that in driven_terminal solution mode, we can set four terminals for a coupled line.
thx!
In HFSS 10 or ealier version, I see the method to extract the even and odd mode impedances of couple-line as follows in the previous post.
(1) Choosing the driven terminal (not driven modal);
(2) draw two terminal lines when setting the waveports;
(3) after simulation, you can get the differential impedance Zdiff and common impedance Zcomm. Then the even mode impedance Zeven = 2*Zcomm, the odd mode impedance Zodd = 0.5*Zdiff.
How about HFSS 11 or 12, does anyone have some idea?
Now I use driven modal, and set number of modes to 2, and get two different impedances. Are they the even/odd impedances I need?
Also, I find that in driven_terminal solution mode, we can set four terminals for a coupled line.
thx!
Hi,
I too have the same doubt as yours; does 2 modes give even and odd mode impedance values for a wave port excitation?