A Dual-Polarized Magneto-Electric Dipole With Dielectric Loading

Author

Siu, Lam ; Wong, Hang ; Luk, Kwai-Man

Author_Institution

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

Volume

57

Issue

3

fYear

2009

fDate

3/1/2009 12:00:00 AM

Firstpage

616

Lastpage

623

Abstract

A plusmn45^degdual-polarized magneto-electric dipole loaded with dielectric substrate is presented. This antenna is composed of shorted-circuited patches and planar dipoles and is fed by four Gamma-shaped probes. The height of a prototype antenna operated at 1.9 GHz is only 24 mm (0.15lambda_o). A wide impedance bandwidth of 24.9% is achieved. The average gain is about 8.2 dBi and the isolation between the two ports is higher than 29 dB over the operating bandwidth. It is demonstrated that the antenna performance can be improved by adding metallic side walls.

Keywords

UHF antennas; antenna feeds; dipole antennas; microstrip antennas; multifrequency antennas; planar antennas; dielectric loading; dielectric substrate; dual-polarized magneto-electric dipole antenna; frequency 1.9 GHz; metallic side wall; planar dipole antenna; shorted-circuited patches; wide impedance bandwidth; Bandwidth; Broadband antennas; Dielectric substrates; Dipole antennas; Feeds; Frequency; Loaded antennas; Polarization; Probes; Wireless communication; Dipole; dual-polarized antenna; short-circuited patch and wideband antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2009.2013430

Filename

4808295