A Novel Technique for the Numerical Evaluation of the Green’s Functions Associated to Cavity Backed Antennas in Circular Waveguides
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2003-06Publisher
Institute Electrical and Electronics Engineers (IEEE)Bibliographic Citation
VERA CASTEJÓN, Pedro, ÁLVAREZ MELCÓN, Alejandro. A novel technique for the numerical evaluation of the Green’s functions associated to cavity backed antennas in circular waveguides. En: IEEE Antennas and Propagation Society International Symposium ( 2003: Columbus, Ohio). IEEE Antennas and Propagation Society International Symposium: June 22-27, 2003. Columbus, Ohio: Institute Electrical and Electronics Engineers, 2003. 725 - 728 p. vol.3. ISBN 0-7803-7846-6Keywords
Métodos de la función de GreenTeoría de antenas
Guía de onda circular
Convergencia de métodos numéricos
Antena de guía de onda
Teoría de guías de onda
Green's function methods
Antenna theory
Convergence of numerical methods
Waveguide antenna
Waveguide theory
Circular waveguide
Ecuación integral de campo magnético
Ecuación integral de campo eléctrico
Electric field integral equation
Magnetic field integral equation
Abstract
In this contribution a simple and effective technique for the numerical calculation of the Green's functions in cylindrical shaped enclosures is developed. The technique is based on the numerical imposition of the boundary conditions for the fields at the cylindrical walls, using the theory of images. Numerical results for the Green's functions inside a cylindrical cavity are presented, including convergence test of the algorithm. Results show that numerical convergence is attained fast, therefore demonstrating the usefulness of the developed algorithm.
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