Title :
Finite-element analysis of magnetostatic wave propagation in a YIG film of finite dimensions
Author :
Koshiba, Masanori ; Long, Yi
Author_Institution :
Dept. of Electron. Eng., Hokkaido Univ., Sapporo, Japan
fDate :
11/1/1989 12:00:00 AM
Abstract :
A unified numerical approach based on the finite-element method is described for the magnetostatic wave propagation in a YIG film of finite dimensions. Both magnetostatic surface wave modes are treated. The validity of the method is confirmed by calculating the magnetostatic wave modes in a YIG-loaded rectangular waveguide and in a YIG film of finite width. The numerical results of a YIG films with nonuniform bias field along the film width are also presented, and the effects of bias field distributions on the delay characteristics and potential profiles are examined
Keywords :
delays; dielectric-loaded waveguides; finite element analysis; garnets; magnetic thin films; magnetostatic wave devices; magnetostatic waves; rectangular waveguides; waveguide theory; yttrium compounds; MSW modes; SHF; YFe5O12; YIG film; YIG-loaded rectangular waveguide; bias field distributions; delay characteristics; finite dimensions; finite-element method; magnetostatic wave propagation; microwave frequencies; nonuniform bias field; potential profiles; surface wave modes; unified numerical approach; Conductors; Equations; Finite element methods; Magnetic analysis; Magnetic films; Magnetic flux; Magnetostatic waves; Nonuniform electric fields; Surface treatment; Surface waves;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
