Analysis of slotlines and microstrip lines on anisotropic substrates

Author

Geshiro, Masahiro ; Yagi, Seikou ; Sawa, Shinnosuke

Author_Institution

Dept. of Electron. Eng., Ehime Univ., Japan

Volume

39

Issue

1

fYear

1991

fDate

1/1/1991 12:00:00 AM

Firstpage

64

Lastpage

69

Abstract

The propagation characteristics of the dominant mode in slotlines as well as in microstrip lines on anisotropic substrates are studied. The dielectric tensor in the substrate may have nondiagonal elements which represent misalignment, on the substrate surface, between the material coordinate system and the waveguide coordinate system. The analysis is devoted to the slotline and is based on Galerkin´s method applied in the spectral domain. Numerical results are presented for a sapphire substrate and a boron nitride substrate. It is found that the coordinate misalignment on the substrate surface has a significant influence on the propagation characteristics of the slotline

Keywords

boron compounds; sapphire; strip lines; waveguide theory; waveguides; Al₂O₃ substrates; BN substrates; Galerkin´s method; anisotropic substrates; coordinate misalignment; dielectric tensor; dominant mode; material coordinate system; microstrip lines; propagation characteristics; sapphire substrate; slotlines; spectral domain; substrate surface; waveguide coordinate system; Anisotropic magnetoresistance; Conductors; Dielectric materials; Dielectric substrates; Microstrip; Permittivity; Slotline; Surface waves; Tensile stress; Yagi-Uda antennas;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.64606

Filename

64606