Title :
Compact CPW-fed ultra-wideband antenna with band-notched characteristic
Author :
Li, Y.S. ; Yang, X.D. ; Liu, Charles Y. ; Jiang, Tianzi
Author_Institution :
Coll. of Inf. & Commun. Eng., Harbin Eng. Univ., Harbin, China
Abstract :
A CPW-fed ultra-wideband antenna with a band-notch characteristic is presented. By cutting two inverted L-shaped slots in the CPW ground, the impedance bandwidth of the proposed antenna can be enhanced. In addition, a tuning stub is inserted in the middle of the fork-like patch to achieve the band rejection characteristic. Experimental and numerical results show that the proposed antenna, with compact size of 21 × 28 mm, has an impedance bandwidth range from 2.38 to 10.6 GHz for a voltage standing-wave ratio less than 2, while rejecting the 5-6 GHz band.
Keywords :
UHF antennas; coplanar waveguides; microstrip antennas; microwave antennas; slot antennas; ultra wideband antennas; L-shaped slot; band rejection; band-notched characteristic; compact CPW-fed ultra-wideband antenna; fork-like patch; impedance bandwidth; tuning stub;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2650
