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Setting up plane wave
Posted 17 juin 2015, 14:16 UTC−4 RF & Microwave Engineering, Acoustics & Vibrations Version 5.0 1 Reply
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Hi, I am quite new to comsol. My problem is fairly simple. I want to simulate an incident plane wave in 2D using RF module and calculate Fresnel Reflection and Transmission coefficients.
However, I am not sure to setup a plane wave travelling in x-direction. I used exp(-i*k*x) in port settings and chose E-field as input.
I have used a rectangular geometry and setup a port. But I am getting a Gaussian wave rather than a plane wave.
Help would be much appreciated.
Regards
However, I am not sure to setup a plane wave travelling in x-direction. I used exp(-i*k*x) in port settings and chose E-field as input.
I have used a rectangular geometry and setup a port. But I am getting a Gaussian wave rather than a plane wave.
Help would be much appreciated.
Regards
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1 Reply Last Post 17 juil. 2015, 13:46 UTC−4
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Posted:
9 years ago
Consider making your port the whole left end rather than just that little bit in the middle. Also exp(j*k*x) is a constant (1) at x=0, which is everywhere in your port on the left end.