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A CAD-oriented method to analyze and design radiating structures based on bodies of revolution by using finite elements and generalized scattering matrix

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4 Author(s)
Jose Ma Gil ; E.T.S.I.T., Univ. Politecnica de Madrid ; Monge, J. ; Rubio, J. ; Zapata, J.

In this work, an efficient analysis of radiating structures based on bodies of revolution is dealt with. The procedure is a hybrid method based on a segmentation of the structure into two-dimensional regions, finite elements and a spherical computation domain surrounding the antenna, defining a boundary or port where a spherical mode expansion of the fields is used. A reduced order model is computed for a fast frequency sweep. To validate this method, some structures based on bodies of revolution as a rod dielectric antenna, conical dielectric-loaded horns, profiled horns and a monopole-dielectric resonator antenna are studied and results are compared with those demonstrated by other authors. The design of a smooth-walled horn by means of the optimization of the profile is also carried out

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:54 ,  Issue: 3 )

Date of Publication:

March 2006

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