Dense Dielectric Patch Antenna—A New Kind of Low-Profile Antenna Element for Wireless Communications

Author

Hau Wah Lai ; Kwai-Man Luk ; Kwok Wa Leung

Author_Institution

Dept. of Electron. Eng., State Key Lab. of Millimeter Waves, Hong Kong, China

Volume

61

Issue

8

fYear

2013

Firstpage

4239

Lastpage

4245

Abstract

By replacing the metallic patch of a microstrip antenna with a high permittivity thin dielectric slab, a new type of patch antenna, designated as the dense dielectric patch antenna (DD patch antenna), is proposed. At lower microwave frequencies, it has similar performance as the conventional metallic circular microstrip antenna operated in the fundamental TM₁₁ mode. A prototype operated at 3.98 GHz exhibits an impedance bandwidth of 1% and a gain of 5.6 dBi. Due to the absence of the metallic patch, it is expected that this antenna has better radiation efficiency at millimeter wave and terahertz frequencies in comparison with the conventional microstrip patch antenna.

Keywords

microstrip antennas; microwave antennas; millimetre wave antennas; radiocommunication; dense dielectric patch antenna; dielectric patch antenna; frequency 3.98 GHz; high permittivity thin dielectric slab; low-profile antenna element; metallic circular microstrip antenna; microstrip metallic patch antenna; microwave frequencies; millimeter wave frequencies; terahertz frequencies; wireless communications; Dielectric resonator (DR); dense dielectric patch; patch antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2013.2260122

Filename

6508824