《A Small UWB Antenna with Dual Band-Notched Characteristics》.pdf

Hindawi Publishing Corporation International Journal of Antennas and Propagation Volume 2012, Article ID 656858, 7 pages doi:10.1155/2012/656858 Application Article A Small UWB Antenna with Dual Band-Notched Characteristics J. Xu,1 D.-Y. Shen,1 G.-T. Wang,1 X.-H. Zhang,1 X.-P. Zhang,2 and K. Wu3 1 School of Information Science and Engineering, Yunnan University, Kunming 650091, China 2 Department of Electrical and Computer Engineering, Concordia University, Montreal, QC, Canada 3 Department of Electrical Engineering, Universite de Montreal, Montreal, QC, Canada ´ ´ Correspondence should be addressed to D.-Y. Shen, shendy@ynu.edu.cn Received 15 February 2012; Accepted 21 June 2012 Academic Editor: Hala A. Elsadek Copyright © 2012 J. Xu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. A small novel ultrawideband (UWB) antenna with dual band-notched functions is proposed. The dual band rejection is achieved by etching two C-shaped slots on the radiation patch with limited area. A single band-notched antenna is firstly presented, and then an optimized dual band-notched antenna is presented and analyzed. The measured VSWR shows that the proposed antenna could operate from 3.05 to 10.7 GHz with VSWR less than 2, except two stopbands at 3.38 to 3.82 GHz and 5.3 to 5.8 GHz for filtering the WiMAX and WLAN signals. Radiation patterns are simulated by HFSS and verified by CST, and quasiomnidirectional radiation patterns in the H-plane could be observed. Moreover, the proposed antenna has a very compact size and could be easily integrated into