Dual-band patch antenna for mobile satellite systems

Author

Lelaratne, R. ; Langley, R.J.

Author_Institution

Electron. Eng. Labs., Kent Univ., Canterbury, UK

Volume

147

Issue

6

fYear

2000

fDate

12/1/2000 12:00:00 AM

Firstpage

427

Lastpage

430

Abstract

The launch of new mobile satellite communication links for telephone and data applications demands development of small, low-profile, low-cost antennas. A single-layer, multi-band microstrip patch antenna is described, which operates over the frequency ranges of the Iridium and Globalstar satellite communication systems, 1.6 and 2.5 GHz. The antenna excites the TM₁₀ and TM₃₀ resonant modes which can operate with either dual linear polarisation or either hand of circular polarisation. The unwanted TM₂₀ mode is suppressed using a combination of slots cut into the patch and by shaping the corners of the patch. Frequency band separations can be varied significantly from 1.3 to 2.5×the lower frequency. Data for designing the patch dimensions is presented. The return loss, impedance characteristics and radiation patterns are presented for a practical design

Keywords

antenna radiation patterns; electric impedance; electromagnetic wave polarisation; microstrip antennas; mobile antennas; mobile satellite communication; multifrequency antennas; 1.6 GHz; 2.5 GHz; Globalstar satellite communication system; Iridium satellite communication system; TM₁₀ resonant mode; TM₂₀ mode suppression; TM₃₀ resonant mode; circular polarisation; data applications; dual linear polarisation; dual-band patch antenna; impedance characteristics; mobile satellite communication links; mobile satellite systems; radiation patterns; return loss; single-layer multi-band microstrip patch antenna; telephone applications;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings

Publisher

iet

ISSN

1350-2417

Type

jour

DOI

10.1049/ip-map:20000864

Filename

909382