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You should check the matlab command you used for plot. The color usually is according to the Z value by default, rather the distance from the origin as you expect.
I see two kinds of definitions for impedance matrix: one considers the contribution from voltage excitation to surface current, the other considers the contribution from surface current to tangential electric field.
Do these definitions result in the same impedance matrix? I think this is very...
Hi, all~
I want to conduct mode analysis for an antenna. This method is used by some researchers. I searched the internet and got several papers. However not much detail on how to model can be obtained there.
About the model setup, PML seems to be necessary. Other hard boundaries are not...
feko metamaterial
In metamaterial simulation, CST and HFSS are widely used. I don't know people using FEKO to simulate metamaterials. But I think in principle it works too. By NO ports, do you mean you just computed the problem as scattering? Then you got the scattered field, from which you...
Find out if ur problem can be approximated by using impedance boundary condition, otherwise I do not know other ways to save another "finite dimension".
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