UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Finite-difference solution of inhomogeneous waveguide modes using a fast direct solver routine

Davies, JB; Fernandez, FA; Fang, Y; (1991) Finite-difference solution of inhomogeneous waveguide modes using a fast direct solver routine. IEEE Transactions on Magnetics , 27 (5) 4028 - 4031. 10.1109/20.104985.

Full text not available from this repository.

Abstract

A computer program, based on a fast direct solver, to solve for the dominant mode in a waveguide of arbitrary refractive index profile within a rectangular box is discussed. The two-dimensional field problem is reduced to a conventional eigenvalue problem in terms of the transverse magnetic field components. The two coupled scalar equations are solved using the FISHPAK software package, which solves a scalar Helmholtz problem using finite differences with an M by N mesh in time proportional to MNlogN. This fast solver is within two iteration loops. The outer is a Rayleigh quotient iteration, and the inner solves the two coupled equations. Results emerge typically in between 2 and 30 total calls of FISHPAK.

Type: Article
Title: Finite-difference solution of inhomogeneous waveguide modes using a fast direct solver routine
DOI: 10.1109/20.104985
UCL classification: UCL > School of BEAMS > Faculty of Engineering Science > Electronic and Electrical Engineering
URI: http://discovery.ucl.ac.uk/id/eprint/74734
Downloads since deposit
0Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item