Title :
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
fDate :
3/1/2009 12:00:00 AM
Abstract :
A plusmn45degdual-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 (0.15lambdao). 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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2009.2013430