High-Frequency Asymptotics for the Radar Cross-Section Computation of a Prolate Spheroid With High Aspect Ratio

    Authors

    I. V. Andronov;R. Mittra

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    IEEE Trans. Antennas Propag.

    Keywords

    Electromagnetic diffraction; high frequency asymptotics; parabolic wave; equation; strongly elongated body; DIFFRACTION; SCATTERING; WAVES; BODY; Engineering, Electrical & Electronic; Telecommunications

    Abstract

    The problem of high-frequency diffraction by elongated bodies is discussed in this paper. The asymptotics are governed by the elongation parameter, which is the ratio of the longitudinal wave dimensions of the body to its cross-section. The cases of axial incidence and that of incidence at a grazing angle to the axis are considered, and the asymptotics of the far field amplitude are developed. Comparisons with numerical results for a set of test problems show that the leading terms of the new asymptotics provide good approximation with respect to the rate of elongation in a uniform manner. Effects of strong elongation on the RCS are discussed.

    Journal Title

    Ieee Transactions on Antennas and Propagation

    Volume

    63

    Issue/Number

    1

    Publication Date

    1-1-2015

    Document Type

    Article

    Language

    English

    First Page

    336

    Last Page

    343

    WOS Identifier

    WOS:000347383500035

    ISSN

    0018-926X

    Share

    COinS