Dual-band circularly-polarized square microstrip antenna

Author

Yang, Kai-Ping ; Wong, Kin-Lu

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

49

Issue

3

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

377

Lastpage

382

Abstract

New designs of obtaining dual-band circular polarization (CP) radiation of a single-feed square microstrip antenna are proposed and experimentally studied. The proposed single-feed dual-band CP designs are achieved by inserting four T-shaped slits at the patch edges or four Y-shaped slits at the patch corners of a square microstrip antenna. From experiments conducted, a patch size reduction as large as 36% for the proposed design, compared to a conventional CP design without the inserted slits, has been obtained. Details of the design considerations of the proposed antennas are described, and experimental results of the obtained dual-band CP performances are presented and discussed

Keywords

antenna feeds; antenna radiation patterns; electromagnetic wave polarisation; microstrip antennas; multifrequency antennas; T-shaped slits; Y-shaped slits; circular polarization radiation; circularly-polarized antenna; dual-band microstrip antenna; patch corners; patch edges; patch size reduction; single-feed dual-band CP design; single-feed square microstrip antenna; Antennas and propagation; Communication equipment; Dual band; Marine technology; Microstrip antennas; Microstrip filters; Patch antennas; Polarization; Resonance; Resonant frequency;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.918611

Filename

918611