A full wave analysis of microstrip-to-waveguide transitions

Author

Hui-Wen Yao ; Abdelmonem, A. ; Ji-Fuh Liang ; Zaki, K.A.

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

fYear

1994

fDate

23-27 May 1994

Firstpage

213

Abstract

A wide band, low insertion loss transition from rectangular waveguide to shielded microstrip line is analyzed using a full wave mode-matching technique. The transition consists of a discontinuity between a ridge waveguide and the microstrip line and a ridge waveguide impedance transformer. The microstrip eigenmodes, including complex modes, are obtained by mode-matching method with LSE and LSM mode expansion. Computed results of a 17-22 GHz transition agree well with available experimental results. This rigorous approach provides a useful tool for the optimum design of microstrip to air filled waveguide or dielectric filled waveguide transitions.<>

Keywords

microstrip lines; numerical analysis; rectangular waveguides; waveguide theory; 17 to 22 GHz; LSE mode expansion; LSM mode expansion; complex modes; discontinuity; full wave analysis; low insertion loss transition; microstrip eigenmodes; microstrip-to-waveguide transitions; mode-matching technique; rectangular waveguide; ridge waveguide; ridge waveguide impedance transformer; shielded microstrip line; wideband transition; Dielectrics; Impedance; Insertion loss; Microstrip; Mode matching methods; Rectangular waveguides; Waveguide discontinuities; Waveguide transitions; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1994., IEEE MTT-S International

Conference_Location

San Diego, CA, USA

ISSN

0149-645X

Print_ISBN

0-7803-1778-5

Type

conf

DOI

10.1109/MWSYM.1994.335341

Filename

335341