arve9066
Member level 2
I am trying to simulate a Substrate Integrated Waveguide structure in HFSS at 2Ghz frequency. I need some help to set up the excitation and boundary conditions. I have a microstrip to SIW transition, SIW structure followed by a SIW to microstrip transition. Right now when I use a driven terminal approach with lumped ports I get the error that there is only one conductor in one of the ports which I kinda understand since the top and bottom planes are shorted through the via holes. So do I use only Driven modal with waveport excitation? Also do I need any air box or radiation boundary definitions when simulating this structure?