Design of dual-polarized L-probe patch antenna arrays with high isolation

Author

Wong, Hang ; Lau, Ka-Leung ; Luk, Kwai-Man

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, China

Volume

52

Issue

1

fYear

2004

Firstpage

45

Lastpage

52

Abstract

An experimental study of a dual-polarized L-probe patch antenna is presented. The antenna is designed to operate at around 1.8 GHz. A "dual-feed" technique is introduced to achieve high isolation between two input ports. The proposed antenna has an impedance bandwidth of 23.8% (SWR≤2), 15% (SWR≤1.5) and an isolation over 30 dB. In array designs, techniques for improving the isolation between two adjacent elements of an antenna array are also investigated. A two-element array with more than 30 dB isolation is designed and tested.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; microstrip antenna arrays; 1.8 GHz; UHF antenna; antenna impedance bandwidth; dual-feed technique; dual-polarized L-probe patch antenna arrays; high isolation; input ports; isolation enhancement; microstrip antenna; two-element array; Antenna arrays; Antenna feeds; Apertures; Bandwidth; Microstrip antenna arrays; Microstrip antennas; Optical polarization; Patch antennas; Probes; Wireless communication;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2003.822402

Filename

1268298