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Scattering of a Hermite‐Gaussian beam mode by a ferrite‐coated conducting cylinder
Author(s) -
Yokota M.,
Takenaka T.,
Fukumitsu O.
Publication year - 1987
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs022i002p00175
Subject(s) - scattering , ferrite (magnet) , optics , physics , gaussian beam , axial symmetry , materials science , cylinder , beam (structure) , computational physics , composite material , geometry , mathematics , quantum mechanics
The scattering of a beam mode by a circular conducting cylinder coated with an axially magnetized ferrite is considered. A complex‐source‐point method introduced by Deschamps and developed by Felsen and his collaborators is used. Numerical results are presented for the scattering patterns of a lowest‐order mode by a conducting circular cylinder covered with an unmagnetized ferrite. The effects of the spot size and the location of the waist of the beam on the scattered field are discussed. A comparison between the scattering of a beam mode and that of a plane wave is presented. The scattering patterns for a magnetized ferrite‐coated conducting cylinder are also calculated and compared with those for an unmagnetized ferrite coating. Finally we calculate the scattering patterns in the resonance region of a magnetized ferrite.