Abstract
In this article, a microwave method has been proposed for accurate parameter retrieval of bianisotropic metamaterial (MM) slabs without enforcing the passivity principle. Thanks to the introduced asymmetrical even and odd reflection coefficients, not only is our method free from singularity-point problem (the argument of a square-root function crosses the negative real axis) explicit expressions for electromagnetic properties but it is also resistant to random noises more than the conventional method that strictly requires the application of the passivity principle. Our new method has been validated by measured and simulated scattering parameters of a fabricated Omega-type bianisotropic MM slab with C-shaped rings.
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