Title :
A unified method for characterization of microstrip and waveguide discontinuities of irregular shape
Author :
Tzyy-Sheng Horng
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
A unified numerical method is proposed to analyze the discontinuities of two major waveguide structures, microstrips and rectangular waveguides, at microwave frequencies. Roof-top and rectangular-pipe subdomain functions are used in an electric-field integral-equation formulation to adequately expand the three-dimensional current densities of an irregularly-shaped conductor. The method is therefore applicable to general configurations of microstrip and waveguide discontinuities. Shielded microstrips, which are a combination of microstrips and rectangular waveguides, can be evaluated efficiently using this technique.
Keywords :
Green´s function methods; current density; integral equations; microstrip discontinuities; numerical analysis; rectangular waveguides; spectral-domain analysis; waveguide discontinuities; T-junction discontinuities; electric-field integral-equation formulation; irregular shape; irregularly-shaped conductor; microstrip discontinuities; microwave frequencies; rectangular waveguides; rectangular-pipe subdomain functions; right-angle bend; roof-top subdomain functions; shielded microstrips; spectral domain dyadic Green function; three-dimensional current densities; unified numerical method; waveguide discontinuities; waveguide open end; Conductors; Current density; Current distribution; Green´s function methods; Integral equations; Microstrip; Rectangular waveguides; Shape; Transmission line matrix methods; Waveguide discontinuities;
Conference_Titel :
Microwave Symposium Digest, 1997., IEEE MTT-S International
Conference_Location :
Denver, CO, USA
Print_ISBN :
0-7803-3814-6
DOI :
10.1109/MWSYM.1997.596913
