Bandwidth enhancement of a printed wide-slot antenna with a rotated slot

Author

Jan, Jen-Yea ; Su, Jia-Wei

Author_Institution

Dept. of Electron. Eng., Nat. Kaohsiung Univ. of Appl. Sci., Taiwan

Volume

53

Issue

6

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

2111

Lastpage

2114

Abstract

In this paper, a printed wide-slot antenna fed by a microstrip line with a rotated slot for bandwidth enhancement is proposed and experimentally studied. Impedance, radiation, and gain characteristics of this antenna are presented and discussed. From experimental results, the measured impedance bandwidth, defined by 10 dB return loss, can reach an operating bandwidth of 2.2 GHz at operating frequencies around 4.5 GHz, which is about four times that of a conventional microstrip-line-fed printed wide-slot antenna. Also, the antenna gain within the operating band is measured and studied, and a 2-dB gain bandwidth of at least 1 GHz is achieved.

Keywords

antenna feeds; antenna radiation patterns; slot antennas; 2.2 GHz; 4.5 GHz; bandwidth enhancement; gain characteristic; impedance; microstrip line; printed wide-slot antenna fed; radiation; slot rotation; Antenna feeds; Antenna measurements; Bandwidth; Gain measurement; Geometry; Impedance measurement; Microstrip antennas; Polarization; Resonance; Slot antennas; Bandwidth enhancement; microstrip-line-fed antennas; printed slot antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2005.848518

Filename

1438497