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FSS Transmission/ Reflection Curves

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arxlan

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Can anyone tell that, what is the difference between the FSS Transmission/Reflection characteristics with and without ground plane?
 

PlanarMetamaterials

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I assume you mean for normal incidence. Think of a transmission line, with the incoming wave as a source, and the ground plane as a load, in this case, a short. The short translated over a short distance of the dielectric height will appear to be an inductor in parallel with your FSS. Of course, your FSS will behave differently too, due to different field profiles. I can't say much more without specific information.
 
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    arxlan

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arxlan

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actually i wanted to ask what difference the ground plane will make to the reflection and transmission.
 

PlanarMetamaterials

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Again, I'm not sure if you mean for normal incidence, but obviously if the ground plane is a PEC the FSS will not have any transmission.
 

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