Title :
Finite-difference method in the frequency domain for the analysis of the coupling between anisotropic channel waveguides
Author :
Sobrinho, C.L.daS.S. ; Giarola, A.J.
Author_Institution :
Dept. of Electr. Eng., Federal Univ. of Para, Belem, PA, Brazil
fDate :
June 28 1993-July 2 1993
Abstract :
An analysis of the propagation characteristics of coupled channel waveguides diffused in anisotropic substrates is presented. The wave equation is written in terms of the transverse components of the magnetic field and is numerically solved by the finite-difference method in the frequency domain. The result is a conventional eigenvalue problem without the presence of spurious modes due to the implicit inclusion of the divergence of the magnetic field equal to zero. The formulation is developed to consider biaxial anisotropic dielectrics with a varying index of refraction profile in the waveguide cross section.<>
Keywords :
eigenvalues and eigenfunctions; electromagnetic wave propagation; finite difference methods; frequency-domain analysis; gradient index optics; nonradiative dielectric waveguides; wave equations; waveguide couplers; anisotropic channel waveguides; biaxial anisotropic dielectrics; coupled channel waveguides; eigenvalue problem; finite-difference method; frequency domain; index of refraction profile; propagation characteristics; wave equation; Anisotropic magnetoresistance; Dielectrics; Eigenvalues and eigenfunctions; Finite difference methods; Frequency domain analysis; Magnetic analysis; Magnetic fields; Optical refraction; Optical waveguides; Partial differential equations;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385134
