Broadband proximity-coupled microstrip antennas with an H-shaped slot in the ground plane

Author

Ke, Shyh-Yeong

Author_Institution

Dept. of Electr. Eng., Chinese Mil. Acad., Kaohsiung, Taiwan

Volume

2

fYear

2002

fDate

2002

Firstpage

530

Abstract

To improve the inherently narrow bandwidth of a microstrip antenna, it is very effective to use an electrically thick (∼0.1λ₀) substrate. A microstrip-line feed together with a slotted ground plane can add degrees of freedom in the design of the antenna feed. A proximity-coupled microstrip antenna with an H-shaped slot in the ground plane is investigated experimentally. The impedance bandwidth of the microstrip antenna is shown for various substrate thicknesses. Also, the backward radiation of the antenna is presented and discussed. Due to the advantages of simplified configuration and low cross polarization, the proposed antenna is also suitable for application in array antenna design.

Keywords

broadband antennas; electric impedance; electromagnetic wave polarisation; microstrip antennas; H-shaped slot; array antenna design; backward radiation; broadband antennas; cross polarization; ground plane; impedance bandwidth; proximity-coupled microstrip antennas; Antenna feeds; Aperture antennas; Bandwidth; Broadband antennas; Dielectric constant; Dielectric substrates; Impedance; Microstrip antennas; Probes; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2002. IEEE

Print_ISBN

0-7803-7330-8

Type

conf

DOI

10.1109/APS.2002.1016138

Filename

1016138