Title :
A novel technique for the numerical evaluation of the Green´s functions associated to cavity backed antennas in circular waveguides
Author :
Castejon, P.V. ; Melcon, A.A.
Author_Institution :
Tech. Univ. of Cartagena, Murcia, Spain
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.
Keywords :
Green´s function methods; antenna theory; circular waveguides; convergence of numerical methods; electric field integral equations; magnetic field integral equations; waveguide antennas; waveguide theory; Green´s functions; boundary conditions; cavity backed antennas; circular waveguides; cylindrical cavity; cylindrical shaped enclosures; electric scalar potential; images theory; magnetic vector potential; mixed potential functions; numerical convergence; numerical imposition; Algorithm design and analysis; Boundary conditions; Circuit analysis; Circuit testing; Computational geometry; Convergence of numerical methods; Electric potential; Green´s function methods; Image analysis; Integral equations;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1220014
