Frequency sweep of the field scattered by an inhomogeneous structure using method of moments and asymptotic waveform evaluation

Jens Troelsen, Peter Meincke, Olav Breinbjerg

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    Abstract

    In many radar applications it is necessary to determine the scattering from an object over a wide frequency band. The asymptotic waveform evaluation (AWE), which is a moment matching (MM) technique, constitutes a method to this end. In general, MM techniques provide a reduced-order model of a function. Using AWE-MM a linear system is expanded in terms of a Taylor series to obtain a fast frequency sweep of the linear system. If the structure of interest is inhomogeneous the MoM solution must be dictated by an integral equation that takes the variation of the electric properties of the structure into account. To the knowledge of the authors the AWE technique has not previously been applied to a MoM solution based on this kind of integral equation. It is the purpose of this paper to investigate the use of the AWE technique as a tool to obtain a fast frequency sweep of the field scattered by an inhomogeneous structure. The investigations concern 2-dimensional (2-D) configurations and TM-polarization.
    Original languageEnglish
    Title of host publicationProceedings of IEEE Antennas and Propagation Society International Symposium
    Volume3
    Place of PublicationSalt Lake City, Utah, USA
    PublisherIEEE
    Publication date2000
    Pages1830-1833
    ISBN (Print)0-7803-6369-8
    DOIs
    Publication statusPublished - 2000
    Event2000 IEEE Antennas and Propagation Society International Symposium - Salt Lake City, United States
    Duration: 16 Jul 200021 Jul 2000
    https://ieeexplore.ieee.org/xpl/conhome/7012/proceeding

    Conference

    Conference2000 IEEE Antennas and Propagation Society International Symposium
    Country/TerritoryUnited States
    CitySalt Lake City
    Period16/07/200021/07/2000
    Internet address

    Bibliographical note

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