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Incident wave
Posted Nov 22, 2016, 6:10 a.m. EST RF & Microwave Engineering, Heat Transfer & Phase Change Version 4.4 1 Reply
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Hello,
I am new to COMSOL, i have been trying to do a simulation following a paper. The geometry shown in the paper is attached below. In this geometry as you can see the incident wave is coming from right side and from free space. I do not know how to incident a wave from free space. What i have been doing " I made a rectangular box around this geometry then set the port boundary condition on right side and scattering boundary condition on the remaining sides. However, i am not getting the desired result as mentioned in this paper. I have feeling that may be the way of setting the port boundary condition is wrong. But i do not know how to incident a wave from space as shown in the below figure.
Can anyone help?
Thanks in advance.
I am new to COMSOL, i have been trying to do a simulation following a paper. The geometry shown in the paper is attached below. In this geometry as you can see the incident wave is coming from right side and from free space. I do not know how to incident a wave from free space. What i have been doing " I made a rectangular box around this geometry then set the port boundary condition on right side and scattering boundary condition on the remaining sides. However, i am not getting the desired result as mentioned in this paper. I have feeling that may be the way of setting the port boundary condition is wrong. But i do not know how to incident a wave from space as shown in the below figure.
Can anyone help?
Thanks in advance.
Attachments:
1 Reply Last Post Dec 2, 2016, 3:31 p.m. EST
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Posted:
7 years ago
Consider using the "scattered field" formalism in the RF module.
In the Model Builder, click on "Electromagnetic Waves, Frequency Domain (emw)"
In the Settings, Solve-for, click on that and choose "Scattered field" instead of "Full field."
Now you can specify a "background electric field" as an incident plane wave.
I could go on, but that should be enough to get you started. The help system and example scattering models may also be of use to you. Good luck.
In the Model Builder, click on "Electromagnetic Waves, Frequency Domain (emw)"
In the Settings, Solve-for, click on that and choose "Scattered field" instead of "Full field."
Now you can specify a "background electric field" as an incident plane wave.
I could go on, but that should be enough to get you started. The help system and example scattering models may also be of use to you. Good luck.