Compact planar ultra-wideband bevelled monopole for portable UWB systems

Author

Thomas, Paul ; Krishna, Deepti Das ; Gopikrishna, M. ; Kalappura, U.G. ; Aanandan, C.K.

Author_Institution

Dept. of Electron., Cochin Univ. of Sci. & Technol., Cochin, India

Volume

47

Issue

20

fYear

2011

Firstpage

1112

Lastpage

1114

Abstract

A novel compact planar ultra-wideband bevelled monopole for portable UWB systems is proposed. The antenna is CPW fed with an impedance transformer implemented along the length of the feed line. This in combination with the bevelled monopole-ground edges leads to a compact UWB antenna design confined to just 8 × 30 mm². The pro posed design fabricated on FR4 substrate (ε_r - 4.4, thickness = 1.6 mm) exhibits a wide impedance bandwidth of 8.4 GHz (3.0 11.4 GHz). The antenna measures a gain and radiation efficiency greater than 1.85 dBi and 81%, respectively, in the band of operation with omnidirectional radiation characteristics.

Keywords

antenna feeds; antenna radiation patterns; coplanar waveguides; impedance convertors; monopole antennas; planar antennas; ultra wideband antennas; CPW fed; FR4 substrate; antenna radiation efficiency; bandwidth 3.0 GHz to 11.4 GHz; bevelled monopole-ground edges; compact planar ultrawideband bevelled monopole antenna; feed line; impedance transformer; omnidirectional radiation characteristics; portable UWB systems; size 1.6 mm;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2011.2285

Filename

6036048