Title :
Finite-element analysis of leaky waveguide antennas
Author_Institution :
CSIRO, Division of Radiophysics, Epping, Australia
Abstract :
A finite-element method is described for the analysis of leaky modes of open uniform waveguides with arbitrary cross-section. The field is represented by a hybrid element in the infinite exterior region, and by conventional triangular elements inside and near the waveguide. Results are presented for channel waveguide, slotted square guide and slotted circular waveguide.
Keywords :
antenna radiation patterns; antenna theory; finite element analysis; waveguide antennas; channel waveguide; finite-element method; hybrid element; leaky waveguide antennas; open uniform waveguides; radiation field; slotted circular waveguide; slotted square guide; triangular elements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860477
