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Progress In Electromagnetics Research
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ZERO AXIAL PARAMETER (ZAP) MEDIUM SHEET

By I. V. Lindell and A. H. Sihvola

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Abstract:
Plane-wave reflection from and transmission through a slab of uniaxial anisotropic medium is studied and the concept of ZAP (Zero-Axial-Parameter) medium sheet is defined as the limiting case when the axial parameters and the thickness of the slab vanish simultaneously. It is shown that the ZAP sheet may act as a spatial filter for the incident waves with transmission in a narrow cone around normal direction. Such a sheet may find application in narrowing the radiation beam and reducing sidelobes of an antenna or as a computer privacy filter in optical frequencies.

Citation:
I. V. Lindell and A. H. Sihvola, "Zero Axial Parameter (Zap) Medium Sheet," Progress In Electromagnetics Research, Vol. 89, 213-224, 2009.
doi:10.2528/PIER08120307
http://www.jpier.org/PIER/pier.php?paper=08120307

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doi:10.1109/22.798001


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