Open AccessExtraordinary electromagnetic transmission through a circular aperture surrounded by surface corrugations
Author(s) -
Na Dong Yeop,
Kim Ji Hyung,
Park Yong Bae,
Jung KyungYoung
Publication year - 2014
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2013.0391
Subject(s) - aperture (computer memory) , eigenfunction , boundary value problem , optics , transmission (telecommunications) , electromagnetic radiation , physics , surface (topology) , electromagnetic field , transmission coefficient , mathematical analysis , geometry , plane (geometry) , mathematics , acoustics , eigenvalues and eigenvectors , engineering , telecommunications , quantum mechanics
The authors investigate extraordinary electromagnetic transmission through a circular aperture surrounded by surface corrugations. An electromagnetic boundary‐value problem of a circular aperture surrounded by surface corrugations in a conducting plane is solved based on the mode matching method. The eigenfunction expansion and Hankel transform are used to represent the scattered fields in terms of the discrete and continuous modes, respectively. The boundary conditions are enforced to obtain a set of simultaneous equations. The transmission coefficient and the radiated fields are represented in a fast‐convergent series. Computation is performed to illustrate the behaviours of transmission and radiation against the corrugation geometries. The effects of the corrugation geometries on the extraordinary electromagnetic transmission are discussed.