Title :
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
fDate :
8/3/2000 12:00:00 AM
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;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000984
