Title :
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
fDate :
1/1/1991 12:00:00 AM
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;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
