Optimization of the cross-sectional shape of a ridge waveguide using the ellipsoid and the tabu search algorithms

Author

Saldanha, R.R. ; Vasconcelos, J.A. ; Moreira, A.N. ; Alvarenga, G.B.

Author_Institution

CPDEE, Univ. Federal de Minas Gerais, Belo Horizonte, Brazil

Volume

32

Issue

3

fYear

1996

fDate

5/1/1996 12:00:00 AM

Firstpage

1254

Lastpage

1257

Abstract

The problem of electromagnetic wave propagation in a hollow-pipe waveguide is of considerable. In order to perform a more complete study of the optimal design of a ridged waveguide, an approach where this problem is formulated in a class of inverse electromagnetic problems is considered. The geometric shape of the waveguide is computed so that two prescribed lowest modes of the transverse magnetic fields are obtained. A general formulation of the problem is presented: the electromagnetic problem is solved by a finite-difference scheme, and the ellipsoid and the tabu search algorithms are used to solve the optimization problem. This formulation should enable the design of guides to meet most practical specifications. Some computational results are given

Keywords

electrical engineering; electrical engineering computing; finite difference methods; inverse problems; magnetic fields; optimisation; ridge waveguides; search problems; waveguide theory; cross-sectional shape optimisation; electromagnetic problem; electromagnetic wave propagation; ellipsoid; finite-difference method; geometric shape; hollow pipe waveguide; inverse electromagnetic problems; optimization problem; ridge waveguide; tabu search algorithms; transverse magnetic fields; Boundary conditions; Difference equations; Electromagnetic propagation; Electromagnetic scattering; Electromagnetic waveguides; Ellipsoids; Finite difference methods; Laplace equations; Magnetic fields; Partial differential equations; Shape; Tellurium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.497472

Filename

497472