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Open boundary condition for time-dependent EM simulations
Posted 26 gen 2015, 20:12 GMT-5 RF & Microwave Engineering, Studies & Solvers Version 5.0 3 Replies
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Well, as the title indicates, I would like to know how to model in COMSOL an open boundary condition for EM simulations, using the transient solver.
An open boundary condition is the one which absorbs all EM radiation, with very little reflections going back to the analysis domain. What I am looking for is a boundary condition that performs the same as the PML, but in time domain simulations.
I am asking this because I am working on GPR (Ground Penetrating Radar). For that application I need to model the soil as infinite (so radiation that gets into the soil is not reflected back, as it happens in practice), and this could be accomplished by adding an open boundary condition underneath the soil.
Any help is highly appreciated.
Best Regards,
Ramon Araujo
An open boundary condition is the one which absorbs all EM radiation, with very little reflections going back to the analysis domain. What I am looking for is a boundary condition that performs the same as the PML, but in time domain simulations.
I am asking this because I am working on GPR (Ground Penetrating Radar). For that application I need to model the soil as infinite (so radiation that gets into the soil is not reflected back, as it happens in practice), and this could be accomplished by adding an open boundary condition underneath the soil.
Any help is highly appreciated.
Best Regards,
Ramon Araujo
3 Replies Last Post 27 gen 2015, 08:30 GMT-5