Antenna synthesis and optimization using generalized characteristic modes

Author

Liu, Duixian ; Garbacz, Obert J. ; Pozar, David M.

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

Volume

38

Issue

6

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

862

Lastpage

868

Abstract

A set of modes called generalized characteristic modes is described. Previously developed characteristic modes exhibit orthogonality properties over an obstacle surface as well as the complete sphere at infinity. The generalized characteristic modes described here also exhibit orthogonality properties over the obstacle surface, but rather than showing orthogonality over the sphere at infinity, they are orthogonal over any region of space, similar to generalized Inagaki modes. Theories developed for antenna pattern synthesis and directivity optimization using generalized Inagaki modes can be applied in an entirely parallel fashion using generalized characteristic modes. Comparisons are made between generalized characteristic modes and generalized Inagaki modes through three examples

Keywords

antenna arrays; antenna radiation patterns; antenna theory; directive antennas; antenna pattern synthesis; directivity optimization; generalized Inagaki modes; generalized characteristic modes; obstacle surface; orthogonality properties; Antenna arrays; Antenna theory; Computational efficiency; Current density; Eigenvalues and eigenfunctions; H infinity control; Pattern analysis; Scattering; Shape;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.55583

Filename

55583