Title :
Scattering from a cavity-backed slit in a ground plane-TM case
Author :
Jeng, Shyh-Kang ; Tzeng, San-Tan
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
5/1/1991 12:00:00 AM
Abstract :
Two-dimensional transverse-magnetic wave scattering from a cavity-backed slit in a ground plane is analyzed by the Harrington-Mautz generalized network formulation (1976). The admittance matrix of the cavity of arbitrary shape and medium is obtained by the finite-element method. The computed admittance matrix, added to the radiation admittance matrix of the equivalent magnetic current on a ground plane, is used to find a solution for the equivalent magnetic current on the slit. Numerical results for coated staggered cavities are included. Accurate results for the magnetic surface currents and radiation patterns have been obtained
Keywords :
electric admittance; electromagnetic wave scattering; finite element analysis; 2D scattering; Harrington-Mautz generalized network formulation; admittance matrix; coated staggered cavities; electromagnetic; equivalent magnetic current; finite-element method; magnetic surface currents; numerical results; radiation admittance matrix; radiation patterns; transverse-magnetic wave scattering; Admittance; Antennas and propagation; Attenuation; Computer aided software engineering; Earth; Finite element methods; Fluctuations; Rain; Research and development; Scattering;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
