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2009-01-13

Zero Axial Parameter (Zap) Medium Sheet

By Ismo Veikko Lindell and Ari Sihvola
Progress In Electromagnetics Research, Vol. 89, 213-224, 2009
doi:10.2528/PIER08120307

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


Ismo Veikko Lindell and Ari 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

References


    1. Lindell, I. V. and A. H. Sihvola, "DB boundary as isotropic soft surface," Proc. Asian Pacific Microwave Conf., 2008.

    2. Lindell, I. V. and A. H. Sihvola, "Uniaxial IB-medium interface and novel boundary conditions," IEEE Trans. Antennas Propag., to be published.

    3. Engheta, N. and R. Ziolkowski, Metamaterials: Physics and Engineering Explorations, IEEE Press, Wiley, 2006.

    4. Silveirinha, M. and N. Engheta, "Design of matched zero-index metamaterials using nonmagnetic inclusions in epsilon-near-zero media," Phys. Rev., Vol. B75, 075119, 2007.

    5. Alu, A., M. G. Silveirinha, A. Saladrino, and N. Engheta, "Epsilon-near-zero metamaterials and electromagnetic sources: Tailoring the radiation phase pattern," Phys. Rev., Vol. B75, 155410, 2007.

    6. Ziolkowski, R. W., "Electrically small resonators: A path of efficient, electrically small antennas," Proc. Metamaterials 2008, 2008.

    7. Kong, J. A., Electromagnetic Wave Theory, EMW Publishing, Cambridge, MA, 2005.

    8. Lindell, I. V., Methods for Electromagnetic Field Analysis, 2nd Ed., University Press, Oxford, 1995.

    9. Kildal, P. S. and A. Kishk, "EM modeling of surfaces with stop or go characteristics — Artificial magnetic conductors and soft and hard surfaces," ACES Journal, Vol. 18, No. 1, 32-40, 2003.

    10. Sievenpiper, D., et al., "High-impedance electromagnetic surfaces with a forbidden frequency band," IEEE Trans. Microwave Theory Tech., Vol. 47, No. 11, 2059-2074, 1999.
    doi:10.1109/22.798001