MMAs

Parametric Study of a Microwave Absorber Based on Metamaterials. #

this post is pushed directly without preview as my windows pc cant handle docker along w/ every other program I ran for this all at once

In the fall semester of academic year 2024-2025 I decided took upon a project in order to design a microwave absorber based on metamaterials. In this post I will document the progress as I learn and develop the cell and the modeling in order to lay everything publicly available and also to short of understand better as I try and explain the process to this figurative rubber ducky that is my editor, not the one it has because vs code pets is not very feature rich at the moment. Finally I have opened a GitHub repository for the report that I’ll eventually submit to my university and for based upon I’ll be credited, it can be found here.

So at first I start by designing a basic layout in CST..

for this I’ll implement a three-layer structure:

• A dielectric Substrate w/ a metal Resonance Layer
• An Air Layer
• A Metal Copper Back-Plate

At first I’ll place the substrate without the resonance layer:

Later I’ll place the metal resonance layer as well but there are a number of possible candidates I think of trying to simulate whereas the vertical layout is pretty much fixed.

Without further’ ado I’ll place the two other layers below Z=0, turn on the orthographic side view to remove shadows and voila:

I think it really gives a sense of scale as the air layer truly shadows the other two.

Now its time to add the ring that is of the same material and thickness as the backplate and lies on top of the dielectric substrate.

Now I’ll try and perform a simulation using the frequency solver in CST just to get an idea how the component behaves, the boundaries will be periodic along the XY plate and I will add absorbing conditions along the Z axis.