Dual resonator 1-D EBG antenna with slot array feed for improved radiation bandwidth

Author

Weily, A.R. ; Esselle, K.P. ; Bird, T.S. ; Sanders, B.C.

Author_Institution

Dept. of Electron., Macquarie Univ., Sydney, NSW

Volume

1

Issue

1

fYear

2007

fDate

2/1/2007 12:00:00 AM

Firstpage

198

Lastpage

203

Abstract

A one-dimensional (1-D) electromagnetic bandgap (EBG) resonator antenna with both high gain and wide radiation bandwidth is described. The use of dual resonators in combination with an array of sources leads to a dramatic increase in the radiation bandwidth of the antenna. The effect of the dual resonators is to increase the bandwidth over which the EBG material acts as a spatial filter, while the array feed increases both the directivity and radiation bandwidth. Theoretical results for a prototype designed to operate at Ku-band are presented and shown to be in good agreement with measured results. The effect of increasing the number of array elements on directivity and radiation bandwidth is examined, and the improvements of the proposed configuration compared with a classical 1-D EBG resonator antenna with single source is presented

Keywords

antenna feeds; antenna radiation patterns; cavity resonators; multifrequency antennas; photonic band gap; slot antenna arrays; spatial filters; Ku band; directivity; dual resonator 1-D EBG antenna; one-dimension electromagnetic bandgap; radiation bandwidth; slot array feed; spatial filter;

fLanguage

English

Journal_Title

Microwaves, Antennas & Propagation, IET

Publisher

iet

ISSN

1751-8725

Type

jour

DOI

10.1049/iet-map:20050314

Filename

4126189