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Radio Physics and Radio Astronomy

ISSN Imprimir: 2152-274X
ISSN En Línea: 2152-2758

Archives: Volume 1, 2010 to Volume 3, 2012

Radio Physics and Radio Astronomy

DOI: 10.1615/RadioPhysicsRadioAstronomy.v3.i1.60
pages 45-53

EVALUATION OF GAUSSIAN BEAM SCATTERING CHARACTERISTICS FOR DOUBLE-PERIODIC STRUCTURES

A. V. Gribovsky
Institute of Radio Astronomy, National Academy of Sciences of Ukraine, 4 Mystetstv St., Kharkiv 61002, Ukraine
O. A. Yeliseyev
Institute of Radio Astronomy, National Academy of Sciences of Ukraine, 4, Chervonopraporna St., Kharkiv, 61002, Ukraine

SINOPSIS

An algorithm is proposed for evaluating electrodynamic scattering characteristics of three-dimensional linearly-polarized Gaussian beams incident on double-periodic plane structures. The spectral functions of an incident beam are found and examined depending on its parameters. The intensity reflection coefficients are compared versus frequency for a plane wave and a wave beam normally incident on a finitely-thick plane screen perforated by rectangular holes. Field patterns are evaluated for beams scattered from this finitely-thick double-periodic plane screen with rectangular holes, provided that the incoming beam is normally incident and has circular cross-section. The narrowing effect is shown for the field pattern of the transmitted wave beam.