Dual-band bow-tie slot antenna fed by coplanar waveguide

Author

Liu, H.W. ; Zhan, Xue-Peng ; Li, Sinan ; Lei, J.H. ; Qin, Feng

Author_Institution

Coll. of Inf. Eng., East China Jiaotong Univ., Nanchang, China

Volume

50

Issue

19

fYear

2014

fDate

September 11 2014

Firstpage

1338

Lastpage

1340

Abstract

A dual-band coplanar waveguide (CPW)-fed bow-tie slot antenna is proposed, which consists of a bow-tie slot, a pair of sector parasitic patches and a modified grounded plane with a band-notch property. The impedance matching, the resonant mode, the radiation patterns and the current distributions are studied. To generate dual-band characteristics, a V-shaped slot is etched on the radiating ground. Experimental and simulated results demonstrate that the antenna exhibits two separate impedance bandwidths of 1450 MHz (about 32.8% centred at 4.43 GHz) and 3500 MHz (about 37.8% centred at 9.25 GHz), which satisfy aircraft radar and X-band applications.

Keywords

antenna radiation patterns; coplanar waveguides; microstrip antennas; multifrequency antennas; slot antennas; CPW fed bow tie slot antenna; V-shaped slot; band notch property; coplanar waveguide; current distributions; dual band bow tie slot antenna fed; dual band coplanar waveguide; generate dual band characteristics; impedance match; modified grounded plane; radiating ground; radiation patterns; sector parasitic patches;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.1700

Filename

6898635