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Broadband RCS reduction of rectangular patch by using distributed loading

Broadband RCS reduction of rectangular patch by using distributed loading

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© The Institution of Electrical Engineers
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A scheme is presented for reducing the RCS of patch antennas outside their operational band without compromising gain performance. This is achieved by placing a narrow resistive strip (distributed loading) around the periphery of the patch which has minimal effect at the operational frequency of the patch. Results are presented using a finite element-boundary integral code demonstrating the effectiveness of this scheme over the traditional method of using lumped loads.

Inspec keywords: antenna theory; radar cross-sections; finite element analysis; dielectric-loaded antennas; microstrip antennas

Other keywords: finite element-boundary integral code; broadband RCS reduction; gain performance; narrow resistive strip; distributed loading; backscatter RCS; radar cross-section; rectangular patch antenna

Subjects: Antenna theory; Radar theory; Single antennas

References

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      • J.M. Jin , J.L. Volakis . A hybrid finite element method for scattering and radiation by microstrip patch antennas and arrays residing in a cavity. IEEE Trans. , 1598 - 1604
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      • D.M. Pozar . Radiation and scattering from a microstrip patch on a uniaxial substrate. IEEE Trans. , 613 - 621
    3. 3)
      • Green, R.B.: `The general theory of antenna scattering', November 1963, PhD Thesis, The Ohio State University, also Ohio State University Electroscience Lab.report # 1223-17.
    4. 4)
      • M.I. Herman , J.L. Volakis . High frequency scattering by a resistive strip and extensions to conductive and impedance strips. Radio Sci. , 335 - 349
    5. 5)
      • D.R. Jackson . The RCS of a rectangular microstrip patch in a substrate-superstrate geometry. IEEE Trans. , 1 - 8
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      • T.B.A. Senior . Combined resistive and conductive sheets. IEEE Trans. , 577 - 579
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