RT Journal Article ID 53615b681c72a145 A1 Gribovsky, A. V. A1 Yeliseyev, O. A. T1 EVALUATION OF GAUSSIAN BEAM SCATTERING CHARACTERISTICS FOR DOUBLE-PERIODIC STRUCTURES JF Radio Physics and Radio Astronomy JO RPRA YR 2012 FD 2012-01-26 VO 3 IS 1 SP 45 OP 53 K1 three-dimensional Gaussian beam K1 double-periodic structures K1 patterns K1 electrodynamic characteristics AB 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. PB Begell House LK https://www.dl.begellhouse.com/journals/6fd1549c0e2c05da,09a21ff76fc2235f,53615b681c72a145.html