antenna_abc
Member level 3
impedance simulation
Hi, everyone. I have a question about how to use HFSS to find the Characteristic Impedance of a transmission line in the eigen-mode solver, such as microstrip line.
I remember in David Pozar's Microwave Engineering, the characteristic impedance can be defined by either power and current, or power and voltage, or voltage and current. And I think the HFSS port-only Driven Mode Solver provide a quick wave to calculate them.
My question is that whether the characteristic impedance can be gotten from the Eigen-Solver by doing "field calculator" integral. I am not sure whether I can integrate the E field along a line to find the voltage, integral H field along a close line to find the current, and then divide them to the characteristic impedance for the quasi-TEM mode.
Or do I need to integral the poynting vector for a surface to get the power?
Any information or examples are welcomed.
Thanks in advance.
Hi, everyone. I have a question about how to use HFSS to find the Characteristic Impedance of a transmission line in the eigen-mode solver, such as microstrip line.
I remember in David Pozar's Microwave Engineering, the characteristic impedance can be defined by either power and current, or power and voltage, or voltage and current. And I think the HFSS port-only Driven Mode Solver provide a quick wave to calculate them.
My question is that whether the characteristic impedance can be gotten from the Eigen-Solver by doing "field calculator" integral. I am not sure whether I can integrate the E field along a line to find the voltage, integral H field along a close line to find the current, and then divide them to the characteristic impedance for the quasi-TEM mode.
Or do I need to integral the poynting vector for a surface to get the power?
Any information or examples are welcomed.
Thanks in advance.