Title :
Efficient analysis of microstrip structures with multiple discontinuities
Author :
Radhakrishnan, K. ; Chew, W.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
We describe an implicit mode matching scheme to solve the junction problem. The finite difference method is used to approximate the spatial derivatives along the transverse direction. The wave is propagated analytically along the z direction. This is done by expressing the fields in terms of matrix functions. A generalization of the spectral Lanczos decomposition method (SLDM) is used to solve for the asymmetric matrix functions in an efficient way. By enforcing boundary conditions on the electric and the magnetic fields at the waveguide junction, it is possible to solve for the reflected and the transmitted fields at the interface.
Keywords :
electric fields; finite difference methods; magnetic fields; microstrip discontinuities; mode matching; spectral-domain analysis; EM fields; EM wave propagation; asymmetric matrix functions; boundary conditions; electric fields; finite difference method; magnetic fields; microstrip structures; mode matching; multiple discontinuities; reflected fields; spatial derivatives approximation; spectral Lanczos decomposition method; transmitted fields; transverse direction; waveguide junction; Equations; Finite difference methods; Magnetic fields; Matrix decomposition; Message-oriented middleware; Microstrip; Time domain analysis; Transmission line matrix methods; Waveguide components; Waveguide junctions;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.873726
