Compact Design of an UWB Antenna with Dual Band-Notched Characteristic

• Published in: Applied Mechanics and Materials Vol. 195-196; no. Mechanical Engineering and Intelligent Systems; pp. 13 - 16
• Main Authors: Zeng, Wen Bo, Zhao, Jia, Wu, Qi Qi, Ke, Bao Zhong
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 01.08.2012
• Subjects: Antennas; Circuit boards; Computer programs; Frequency bands; Ground plane; Patch antennas; Printed circuits; Wireless communication; Printed Antenna; UWB Antenna; Semi-Circular Patch; Dual Band-Notched Antenna; Tapered CPW
• ISBN: 3037854693; 9783037854693
• ISSN: 1660-9336; 1662-7482; 1662-7482
• DOI: 10.4028/www.scientific.net/AMM.195-196.13

An ultra-wideband (UWB) printed antenna with dual band-notched characteristic is presented in this paper. The proposed antenna is composed of a semi-circular patch fed by a tapered coplanar waveguide (CPW) and an unclosed ground plane, which are printed onto the same side of a FR4 printed circuit board (PCB) with an overall size of 30 mm × 30 mm × 1.5 mm. By embedding a simple arc-shaped slot in the patch and adding a T-shaped strip on the top of the patch, two notched frequency bands for rejection of WiMAX and WLAN system can be realized. The characteristics of the proposed antenna are investigated by using the software HFSS and validated experimentally, both simulated and measured results show that the proposed antenna prototype achieves good impedance matching over an frequency band from 2.1011.40 GHz for VSWR2 with two notched bands over the frequency range of 5-5.95 GHz and 3.1-3.9 GHz. Furthermore, a relatively stable gain and suitable radiation patterns are also achieved in both lower and upper UWB frequency band.