Title :
CPW-fed circular slot antenna with slit back-patch for 2.4/5 GHz dual-band operation
Author :
Sze, J.-Y. ; Hsu, C.-I.G. ; Jiao, J.-J.
Author_Institution :
Dept. of Electr. Eng., Nat. Defense Univ., Taoyang, Taiwan
fDate :
5/11/2006 12:00:00 AM
Abstract :
A circular slot antenna fed by a coplanar waveguide (CPW) is proposed for dual-band operations. Dual frequency bands that cover the 2.4 GHz (2400-2484 MHz) and 5 GHz (5150-5825 MHz) bands were obtained by embedding a pair of slits in the circular back-patch that is printed on the backside of the substrate and concentric with the circular slot. This design resulted in broadside far-field patterns with low cross-polarisation levels in both frequency bands and a small antenna size of 40×40 mm with the ground plane regarded as part of the antenna structure.
Keywords :
UHF antennas; antenna feeds; antenna radiation patterns; coplanar waveguides; microwave antennas; multifrequency antennas; slot antennas; 2400 to 2484 MHz; 5150 to 5825 MHz; CPW-fed circular slot antenna; UHF; antenna size; broadside far-field patterns; coplanar waveguide; cross-polarisation; dual-band operation; slit back-patch;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20064479
