A flat four-beam switched array antenna

Author

Kuga, Nobuhiro ; Arai, Hiroyuki

Author_Institution

Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan

Volume

44

Issue

9

fYear

1996

fDate

9/1/1996 12:00:00 AM

Firstpage

1227

Lastpage

1230

Abstract

A low-profile four-beam switched array antenna for mobile terminals is proposed in this paper. A flat antenna concept modeled as a square magnetic line current array is realized by thin trapezoidal cavity elements. A unidirectional beam is obtained which can be redirected by alternating input terminals of the hybrid coupler. Element characteristics are calculated approximately using a cavity model with the two-dimensional finite-element method. Input characteristics and radiation pattern of the array antenna are evaluated by experiments

Keywords

antenna arrays; antenna radiation patterns; finite element analysis; land mobile radio; mobile antennas; alternating input terminals; cavity model; element characteristics; flat antenna concept; flat four-beam switched array antenna; hybrid coupler; input characteristics; mobile telephone systems; mobile terminals; model; radiation pattern; square magnetic line current array; thin trapezoidal cavity elements; two-dimensional finite-element method; unidirectional beam; Antenna arrays; Antenna radiation patterns; Antennas and propagation; Apertures; Directive antennas; Fading; Finite element methods; Frequency; Interchannel interference; Mobile antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.535380

Filename

535380