Slot-coupled directional couplers between double-sided cylindrical microstrip lines

Author

Jui-Han Lu ; Kin-Lu Wong

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

3

fYear

1996

fDate

21-26 July 1996

Firstpage

2226

Abstract

Slot-coupled directional couplers between double-sided substrate microstrip lines have found applications in the design of many important circuits. To analyze the characteristics of such slot-coupled directional couplers on a curved surface, we present the study of slot-coupled double-sided cylindrical microstrip lines. The inside and outside cylindrical microstrip lines are coupled through a rectangular coupling slot in the common cylindrical ground plane. To solve the problem a full-wave approach incorporating a Galerkin´s moment-method calculation is applied. The S parameters of such a directional coupler are calculated and compared with experiment.

Keywords

Galerkin method; S-parameters; circular waveguides; directional couplers; method of moments; microstrip discontinuities; waveguide theory; Galerkin´s moment-method calculation; S parameters; curved surface; double-sided cylindrical microstrip lines; full-wave approach; rectangular coupling slot; slot-coupled directional couplers; Admittance; Coupling circuits; Directional couplers; Feeds; Green´s function methods; Magnetic field measurement; Microstrip; Millimeter wave circuits; Scattering parameters; Transmission line matrix methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1996. AP-S. Digest

Conference_Location

Baltimore, MD, USA

Print_ISBN

0-7803-3216-4

Type

conf

DOI

10.1109/APS.1996.550053

Filename

550053