Title :
A Compact Ultrawideband Antenna With 3.4/5.5 GHz Dual Band-Notched Characteristics
Author :
Chu, Qing-Xin ; Yang, Ying-Ying
Author_Institution :
Coll. of Electron. & Inf. Eng., South China Univ. of Technol., Guangzhou
Abstract :
We propose a compact planar ultrawideband (UWB) antenna with 3.4/5.5 GHz dual band-notched characteristics. The antenna consists of a beveled rectangular metal patch and a 50 Omega coplanar waveguide (CPW) transmission line. By etching two nested C-shaped slots in the patch, band-rejected filtering properties in the WiMAX/WLAN bands are achieved. The proposed antenna is successfully simulated, designed, and measured showing broadband matched impedance, stable radiation patterns and constant gain. An equivalent circuit model of the proposed antenna is presented to discuss the mechanism of the dual band-notched UWB antenna. A UWB antenna and a single band-notched one are also provided for references.
Keywords :
antenna radiation patterns; band-stop filters; coplanar transmission lines; coplanar waveguide components; equivalent circuits; impedance matching; microstrip antennas; multifrequency antennas; planar antennas; slot antennas; ultra wideband antennas; C-shaped slots; CPW; UWB antenna; WLAN; WiMAX; band-rejected filtering property; beveled rectangular metal patch antenna; broadband impedance matching; coplanar waveguide transmission line; dual band-notched characteristics; equivalent circuit model; frequency 3.4 GHz; frequency 5.5 GHz; planar ultrawideband antenna; radiation pattern; resistance 50 ohm; wireless local area network; Broadband antennas; Coplanar transmission lines; Coplanar waveguides; Distributed parameter circuits; Etching; Planar transmission lines; Rectangular waveguides; Transmission line antennas; Ultra wideband antennas; Ultra wideband technology; C-shaped slots; coplanar waveguide (CPW) fed antennas; dual band-notched characteristics; equivalent circuits; ultrawideband (UWB) antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2008.2007368
