boundary conditions for rectangular dielectric resonator antenna in eigenmode solver of CST to calculate modes.
You cannot use eigenmode solver for DRAs,, because you have an open structure.
However, you could get some approximate results if you use magnetic walls
@Ronis thanks for response. Then how could I know about which modes are given by s-parameters in the DRA? I know there are analytical methods to estimate it but could CST tell too.
I do not think that there is a way to estimate which modes are excited based on S parameters.
thanks Ronis
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