Novel spatial domain integral equation formulation for the analysis of rectangular waveguide steps close to arbitrarily shaped dielectric and/or conducting posts
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Quesada Pereira, Fernando Daniel; Gómez Molina, Celia; Álvarez Melcón , Alejandro; Boria Esbert, Vicente Enrique; Guglielmi, MarcoÁrea de conocimiento
Teoría de la Señal y las ComunicacionesPatrocinadores
This research work has been financially supported by the Spanish Ministerio de Economia y Competitividad in the frame of the projects "Demostradores Tecnologicos de Filtros y Multiplexores con Respuestas Selectivas y Sintonizables en Nuevas Guias Compactas para Aplicaciones Espaciales (COMPASSES)" with Ref. TEC2016-75934-C4-1-R, and "Analisis y Diseno de Nuevos Componentes en Microondas y Milimetricas para Comunicaciones por Satelite (MILISAT)" with Ref. TEC2016-75934-C4-4-R. As an additional financial source we thank the regional agency Fundacion Seneca from Region de Murcia under the research project "Desarrollo de Antenas y Componentes Pasivos de Microondas para Sistemas Avanzados de Comunicaciones" with Ref. 19494/PI/14 and Ref. 20147/EE/17, and the PhD scholarship granted by the Spanish national Ministerio de Educacion, Cultura y Deporte with Ref. FPU15/02883. All results of this paper can be reproduced by using the data and information contained in the drawings and in the captions of the figures included in the paper.Fecha de publicación
2018-02-25Editorial
American Geophysical UnionCita bibliográfica
Quesada Pereira, FD.; Gomez Molina, C.; Alvarez Melcon, A.; Boria Esbert, VE.; Guglielmi, M. (2018). Novel spatial domain integral equation formulation for the analysis of rectangular waveguide steps close to arbitrarily shaped dielectric and/or conducting posts. Radio Science. 53(4):406-419. https://doi.org/10.1002/2017RS006429Revisión por pares
siPalabras clave
Integral equation formulationRectangular waveguide microwave components
Methos of moments
Green’s functions
Resumen
In this paper, a novel integral equation formulation expressed in the spatial domain is
proposed for the analysis of rectangular waveguide step discontinuities. The important novelty of the
proposed formulation is that which allows to easily take into account the electrical influence of a given
number of arbitrarily shaped conducting and dielectric posts placed close to the waveguide discontinuity.
For the sake of simplicity, and without loss of generality, the presented integral equation has been
particularized and solved for inductive rectangular waveguide geometry. In this case, the integral equation
mixed-potentials kernel is written in terms of parallel plate Green’s functions with an additional ground
plane located on the waveguide step. Therefore, the unknowns of the problem are reduced to an equivalent
magnetic surface current on the step aperture and equivalent magnetic and electric surface currents on
the dielectric and conducting posts close to the discontinuity. The ...
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