Hi everyone.
I am trying to model an overhead line system, in which the transmission tower should be defined as a surge impedance. I expect the wave will go down the transmission tower and get reflected back up, hence the need of surge impedance. In RF module, which boundary condition is required so I can let COMSOL to know the existence of such impedance.
Please find the attached snapshot of the tower model. One end of the conductor is assigned with lumped port(coaxial, excitation on) and another end with lumped port (coaxial, excitation off), while the rest is perfect electric conductor. However, it seems from my simulation that the wave travelling across the conductor does not cross over the tower arm, which it is not supposed to be. My guess is that something goes wrong on the boundary between conductor and tower arm.
Appreciate if anyone can shed some light! Thank you!
I am trying to model an overhead line system, in which the transmission tower should be defined as a surge impedance. I expect the wave will go down the transmission tower and get reflected back up, hence the need of surge impedance. In RF module, which boundary condition is required so I can let COMSOL to know the existence of such impedance.
Please find the attached snapshot of the tower model. One end of the conductor is assigned with lumped port(coaxial, excitation on) and another end with lumped port (coaxial, excitation off), while the rest is perfect electric conductor. However, it seems from my simulation that the wave travelling across the conductor does not cross over the tower arm, which it is not supposed to be. My guess is that something goes wrong on the boundary between conductor and tower arm.
Appreciate if anyone can shed some light! Thank you!