Title :
An improved dual band-notched UWB antenna with a parasitic strip and a defected ground plane
Author :
Xue-jie Liao ; Yang, Hang-chun ; Han, Na
Author_Institution :
Sch. of Phys. Electron., UESTC, Chengdu, China
Abstract :
A novel dual band-notched printed monopole antenna (BPMA) for ultra-wideband (UWB) application is presented. The purpose of this antenna is used to prevent interference problems due to the existing nearby communication systems within an UWB operating frequency. The band-notches are realized by adding an independent controllable strip as well as using a hook-shaped defected ground structure (DGS) in the ground plane, and band rejected filtering properties in the WiMAX/WLAN are achieved. Simulated results show that the designed antenna, with a compact size of 24 × 26 × 1 mm3, has an impedance bandwidth of 2.9-14 GHz for VSWR less than 2, except two frequency stop-bands of 3.4-4.2 GHz and 5.2-5.9 GHz. Besides, the antenna has good omnidirectional radiation patterns in the H plane. moreover, parametric studies are discussed in detail.
Keywords :
WiMax; antenna radiation patterns; microstrip antennas; monopole antennas; ultra wideband antennas; wireless LAN; BPMA; WLAN; WiMAX; bandwidth 2.9 GHz to 14 GHz; defected ground plane; dual band-notched printed monopole antenna; dual band-notched uwb antenna; hook- shaped defected ground structure; independent controllable strip; omnidirectional radiation patterns; parasitic strip; ultra-wideband application; Antenna radiation patterns; Bandwidth; Broadband antennas; Dipole antennas; Impedance; Slot antennas;
Conference_Titel :
Intelligent Signal Processing and Communication Systems (ISPACS), 2010 International Symposium on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-7369-4
DOI :
10.1109/ISPACS.2010.5704787
