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grating resonance structure, reflection greater than 100%

Posted 13.04.2020, 05:37 GMT-4 0 Replies

Kaidi Xu
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Hi, I am simulating a grating resonant structure, I use the floquent peridoic condition and PORT 1 input TM wave. The incident angle is 45[degree]. But the transmittance and reflection(abs(ewfd.S11)^2) in port 1 give me really puzzling result that some part of it less than 0% and some part of it greater than 100%.! Is there anything wrong with my boundary condition?

0 Replies Last Post 13.04.2020, 05:37 GMT-4
COMSOL Moderator

Hello Kaidi Xu

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