Numerical Evaluation of the Green's functions for Arbitrarily Shaped Enclosures
| Autor: | Juan Pascual-Garcia, F.D. Quesada-Pereira, Monica Martinez-Mendoza, F.J. Perez-Soler, Juan Sebastian Gomez-Diaz, Alejandro Alvarez-Melcon |
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| Přispěvatelé: | Grupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT) |
| Rok vydání: | 2007 |
| Předmět: |
Engineering
Filtros de guía de onda Onda guía Waveguide filter law.invention Cavidades Optics Band-pass filter law Convergence (routing) Shielded cable Green's functions Boundary value problem Printed Circuit Teoría de la Señal y las Comunicaciones business.industry Mathematical analysis Cavities Finite element method Dipole Funciones de Green Waveguide business Circuitos impresos |
| Zdroj: | 2007 IEEE/MTT-S International Microwave Symposium. |
| ISSN: | 0149-645X |
| DOI: | 10.1109/mwsym.2007.380192 |
| Popis: | In this paper, a new spatial method has been implemented for the efficient calculation of the mixed potential Green's functions associated to electrical sources, when they are placed inside arbitrarily-shaped cylindrical cavities. The technique consists of placing electric dipole images and charges outside the cavity, imposing, at discrete points of the metallic wall, the appropriate boundary conditions for the potentials. Results show that the numerical convergence is attained fast. The cut-off frequencies and potential patterns for a trapezium-shaped waveguide are compared to those obtained by a standard finite elements technique, showing excellent agreement. Furthermore, a printed planar filter shielded in a square cavity has been analyzed with the new Green's functions, showing the practical value of the new theory. This work has been supported by Spanish National project CICYT-TEC2004-043 13-C02-02/TCM, and by Fundacion Séneca project, Ref. 02972/PI/05 |
| Databáze: | OpenAIRE |
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