A novel method to calculate the circuit parameters in asymmetric coupled transmission lines

Author

Wu, Ke ; Vahldieck, Ruediger

Author_Institution

Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada

fYear

1989

Firstpage

2235

Abstract

Propagation and coupling characteristics of asymmetric coupled microstrip lines can be described in terms of C and PI modes. So far, this concept has been utilized only for metal strip-type coupling structures, because C and PI modes can only clearly be assigned by using quasi-static analysis. To extend this concept to coupled slot-type transmission lines (e.g. finlines) or mixed structures, including dielectric lines, the authors introduce fictitious electric and magnetic decoupling walls and calculate the decoupled circuit parameters. This allows the circuit designer to utilize fully equivalent network synthesis procedures for generalized coupled hybrid structures

Keywords

equivalent circuits; fin lines; network parameters; strip lines; waveguide theory; C-modes; PI modes; asymmetric coupled transmission lines; circuit parameters; coupling characteristics; dielectric lines; electric decoupling walls; equivalent network synthesis procedures; finlines; generalized coupled hybrid structures; magnetic decoupling walls; microstrip lines; mixed structures; quasi-static analysis; slot-type; Coupling circuits; Dielectrics; Dispersion; Distributed parameter circuits; Filters; Finline; Magnetic separation; Microstrip; Network synthesis; Transmission line theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1989., IEEE International Symposium on

Conference_Location

Portland, OR

Type

conf

DOI

10.1109/ISCAS.1989.100822

Filename

100822