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Comparative analysis of exact and approximate solutions of the plane electromagnetic wave scattering from a discrete parabolic reflector made of parallel circular PEC wires

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  • Elena A. Velichko

Abstract

Numerical analysis of the scattering of a plane monochromatic electromagnetic wave from a discrete parabolic reflector made of parallel cylinders (wires) with perfect electric conductivity is carried out in the exact and approximate formulations, the latter neglecting all interactions between the wires. Both the TE and the TM polarizations of the incident field are considered. It is shown that the difference between the exact and approximate solutions strongly depends on the frequency of the incident wave and that the TM-polarized plane wave is focused better by the discrete reflector than the TE-polarized wave. The field in the vicinity of the geometrical focus is investigated. It is found that the focusing ability, oscillating, gradually decreases with frequency. This behavior is in stark contrast to a solid perfectly electrically conducting parabolic reflector.

Suggested Citation

  • Elena A. Velichko, 2021. "Comparative analysis of exact and approximate solutions of the plane electromagnetic wave scattering from a discrete parabolic reflector made of parallel circular PEC wires," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 35(11), pages 1529-1540, July.
    • Handle: RePEc:taf:tewaxx:v:35:y:2021:i:11:p:1529-1540
    DOI: 10.1080/09205071.2021.1903344
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