Title :
Compact UWB antenna with four band-notches for UWB applications
Author :
Li, Luoqing ; Zhou, Z.-L. ; Hong, Jing-Song
Author_Institution :
Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A novel compact ultra-wideband (UWB) monopole antenna with four band-notched characteristics is presented. Three crescent-shaped resonators coupled to the radiating patch are used to create three notched bands at 4.94-5.52 GHz, 5.72-6.02 GHz for WLAN and 7.25 7.76 GHz for downlink of X-band satellite communication systems. In addition, an inverted U-slot is cut in the ground plane to generate the fourth notched band at 8.01-8.55 GHz for the ITU band. The proposed antenna has been successfully fabricated and measured, showing broadband matched impedance (3.05-14 GHz, VSWR <; 2), stable gain and good omnidirectional radiation patterns. Moreover, the designed antenna has a compact size of 25 × 28 mm.
Keywords :
antenna radiation patterns; microstrip antennas; microwave resonators; monopole antennas; satellite antennas; satellite communication; slot antennas; ultra wideband antennas; ultra wideband communication; ITU band; X-band satellite communication systems; broadband matched impedance; compact UWB antenna; compact ultrawideband monopole antenna; crescent-shaped resonators; four band-notched characteristics; frequency 3.05 GHz to 14 GHz; ground plane; inverted U-slot; omnidirectional radiation patterns; radiating patch;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.2334
