Title :
Variational analysis of inclined slots in the narrow wall of a rectangular waveguide
Author :
Jan, Cheng-Geng ; Wu, Ruey-Beei ; Hsu, Powen
Author_Institution :
Dept. of Electron., Chung Shan Inst. of Sci. & Technol., Lung-Tan, Taiwan
fDate :
10/1/1994 12:00:00 AM
Abstract :
A variational analysis for calculating the admittance of the inclined slots in the narrow wall of a rectangular waveguide is presented. The analysis uses the 90° wedge Green´s function to model the scatterings off the waveguide corners and assumes an equiphase half-cosinusoidal electric field distribution along the slot aperture. Based on these, a variational equation is derived for the reflection coefficient due to the slot discontinuity, from which the slot admittance is calculated. Through comparisons between the computed results and the literature results, the analysis is found to be accurate, reliable, and efficient
Keywords :
Green´s function methods; antenna accessories; antenna theory; convergence of numerical methods; electric admittance; electromagnetic wave reflection; electromagnetic wave scattering; microwave antenna arrays; rectangular waveguides; slot antennas; variational techniques; waveguide antennas; waveguide theory; Green´s function; admittance; equiphase half-cosinusoidal electric field distribution; inclined slots; narrow wall; rectangular waveguide; reflection coefficient; scattering; slot admittance; slot aperture; slot discontinuity; variational analysis; variational equation; waveguide corners; Admittance; Apertures; Councils; Equations; Moment methods; Rectangular waveguides; Reflection; Resonance; Scattering; Waveguide components;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
