Scattering of chiral periodic structure

    Authors

    T. X. Wu;D. L. Jaggard

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Antennas Propag.

    Keywords

    chiral media; periodic structure; scattering; MEDIA; Engineering, Electrical & Electronic; Telecommunications

    Abstract

    We propose, develop, and implement an exact method to analyze the scattering of chiral periodic structure. The method combines the building block approach of multimode network theory with a rigorous mode-matching procedure. Symmetry properties of the structure are employed to simplify the analysis. Numerical results are given to discuss physical properties of the structure. At low frequencies, when only two Floquet modes can propagate in chiral period layer, the scattering of plane waves by the chiral periodic structure acts approximately as the scattering of plane waves by a uniform chiral slab with parameters equal to the average of those for the periodic layer. At higher frequencies, we find anomalous coupling regions known as Wood's anomalies and are explained by the excitation of and reradiation of leaky waveguide modes in the periodic layer.

    Journal Title

    Ieee Transactions on Antennas and Propagation

    Volume

    52

    Issue/Number

    7

    Publication Date

    1-1-2004

    Document Type

    Article

    Language

    English

    First Page

    1859

    Last Page

    1870

    WOS Identifier

    WOS:000222629700026

    ISSN

    0018-926X

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