A model for describing mutual coupling in uniform circular arrays and its application to DOA estimation

Author

Rogier, Hendrik ; Bonek, Emst

Author_Institution

Inf. Technol. Dept., Ghent Univ., Belgium

Volume

2

fYear

2004

fDate

20-25 June 2004

Firstpage

1251

Abstract

A rigorous circuit model with a limited number of parameters is presented to describe mutual coupling in uniform circular arrays. The model, which is based on a phase-mode expansion, provides physical insight into the frequency dependence and the dependence on azimuth angle of the coupling between antenna elements. The derived circuit elements are used to develop dedicated techniques for direction-of-arrival (DOA) estimation in such arrays.

Keywords

UHF antennas; antenna theory; dipole antenna arrays; direction-of-arrival estimation; electromagnetic coupling; mobile antennas; mobile radio; signal classification; 900 MHz; DOA estimation; MUSIC; antenna arrays; antenna elements; circuit model; direction-of-arrival estimation; mobile communications systems; mutual coupling; phase-mode expansion; thin dipole antennas; uniform circular arrays; Antenna arrays; Antenna theory; Coupling circuits; Current distribution; Direction of arrival estimation; Impedance; Information technology; Mutual coupling; Phased arrays; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2004. IEEE

Print_ISBN

0-7803-8302-8

Type

conf

DOI

10.1109/APS.2004.1330411

Filename

1330411