ycwu
Newbie level 4
Hi,
I am a starter in HFSS simulation and I am tring to use HFSS to check my CPW design is 50ohm upto 50GHz.
I used waveport (the size follows the guideline in manual, and normalized to 50Ohm) at one side, and set the radiation boundary to all outer surfaces. The simulated Z11 is fairly close to 50ohm, which is reasonable to me.
Since I also want to know S11 and S12, I set another waveport2 (normalized to 50ohm) at the other side of CPW. However, the result becomes more standing-wave like (peaks at certain frequencies)
So does it mean if I want to know the impedance of my structure, I should only use 1 ports?
Thank you!
I am a starter in HFSS simulation and I am tring to use HFSS to check my CPW design is 50ohm upto 50GHz.
I used waveport (the size follows the guideline in manual, and normalized to 50Ohm) at one side, and set the radiation boundary to all outer surfaces. The simulated Z11 is fairly close to 50ohm, which is reasonable to me.
Since I also want to know S11 and S12, I set another waveport2 (normalized to 50ohm) at the other side of CPW. However, the result becomes more standing-wave like (peaks at certain frequencies)
So does it mean if I want to know the impedance of my structure, I should only use 1 ports?
Thank you!