Title :
Nonreciprocity of phase constants, characteristic impedances, and conductor losses in planar transmission lines with layered anisotropic media
Author :
Kitazawa, Toshihide
Author_Institution :
Dept. of Electr. Eng., Ibaraki Univ., Hitachi, Japan
fDate :
2/1/1995 12:00:00 AM
Abstract :
The nonreciprocal characteristics of the planar transmission lines with the layered structures, including magnetized ferrite, are analyzed based on the versatile hybrid-mode formulation that is applicable to various types of shielded and open structures. An accurate and efficient numerical procedure presents the frequency-dependent nonreciprocal values of the phase constants, characteristic impedances, and attenuation constants, taking the finite metallization thickness into consideration. Numerical results show that the nonreciprocal and metallization thickness effects are dominant parameters on the propagation characteristics, and these effects are different, depending on the types of the planar transmission lines
Keywords :
coplanar waveguides; electric impedance; ferrite waveguides; fin lines; losses; numerical analysis; slot lines; strip lines; waveguide theory; attenuation constants; characteristic impedances; conductor losses; finite metallization thickness; hybrid-mode formulation; layered anisotropic media; magnetized ferrite; nonreciprocal characteristics; numerical procedure; open structures; phase constant; planar transmission lines; propagation characteristics; shielded structures; Anisotropic magnetoresistance; Conductors; Ferrites; Impedance; Magnetic analysis; Magnetic anisotropy; Metallization; Perpendicular magnetic anisotropy; Planar transmission lines; Propagation losses;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
