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Using PML's for Frequency Dependent Structures
Posted Mar 28, 2021, 7:18 p.m. EDT RF & Microwave Engineering, Wave Optics Version 5.6 0 Replies
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Hi everyone,
I am trying to run a simulation for an isolated split ring resonator (SRR) or nanoparticle using the RF module. The setup of that I am using is similar to what is displayed for a period simulation of SRR's shown in the link below. To do this, I encapsulated my domain in PML's and can run the simutation over a range of frequencies which show similar electric and magnetic fields as depicted for the periodic boundary condition simulation. A problem that has arrived is now my S-parameter plots (S11 and S21) both equal zero for all frequencies. Somehow, neither of my ports are recieving signals. I am just using a user-defined port now instead of periodic because I want to simulate plane and circularly polarized excitations on my resonators. I am still quite new to COMSOL and would appreciate any advice or remedy. I should note that when using periodic boundary conditions, my S-parameter plots do show the modal responses I am expecting, so the errors occuring must be due to the newly defined ports or PML configurations.
Thanks!
https://www.comsol.com/blogs/modeling-complementary-split-ring-resonator-ease/
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Hello Noah Gorgichuk
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