Coplanar waveguide fed wideband slot antenna

Author

Bhobe, A.U. ; Holloway, C.L. ; Piket-May, M. ; Hall, R.

Author_Institution

Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA

Volume

36

Issue

16

fYear

2000

fDate

8/3/2000 12:00:00 AM

Firstpage

1340

Lastpage

1342

Abstract

A new design for a coplanar waveguide (CPW) fed slot antenna is presented. The impedance matching and the radiation characteristics of this structure were studied using the method of moment technique. This antenna has an impedance bandwidth (for a VSWR<2) of 49% and a radiation bandwidth of 42% about its 4.8 GHz centre frequency, compared to the 12-20% impedance bandwidth of the standard CPW fed slot antenna. The cross-polarisation in both the principle planes is at least 20 dB below co-polarisation across the entire bandwidth. Simulated and measured results of the antenna are presented. This wideband antenna has significant applications in wireless technologies

Keywords

antenna radiation patterns; coplanar waveguides; impedance matching; method of moments; slot antennas; 4.8 GHz; CPW fed wideband slot antenna; E-plane radiation patterns; H-plane radiation patterns; centre frequency; coplanar waveguide fed wideband slot antenna; cross-polarisation; design; impedance bandwidth; impedance matching; method of moment technique; radiation bandwidth; radiation characteristics; wireless technologies;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:20000984

Filename

862129