Compact coplanar waveguide fed ultra wideband antenna with a notch band characteristic

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• 作者：Ying-song Li  ; ;   ; ^{liyingsong@hrbeu.edu.cn} ;   ; ^{lys_heu@126.com} ; Xiao-dong Yang ; Qian Yang ; Cheng-yuan Liu[Author vitae]
• 关键词：UWB antenna ; CPW-fed ; Notch band characteristic
• 刊名：AEU - International Journal of Electronics and Communications
• 出版年：2011
• 出版时间：November 2011
• 年：2011
• 卷：65
• 期：11
• 页码：961-966
• 全文大小：1515 K

文摘

A coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna with a notch band characteristic is presented for 2.4 GHz and UWB applications. The bandwidth is broadened by embedding two inverted L-shaped slots in the CPW ground and the notch band is achieved by etching a rectangle slot in the CPW ground. The notched band can be controlled by adjusting the length of the rectangle slot and the two inverted L-shaped slots. Experimental and numerical results show that the proposed antenna with compact size of 28 ¡Á 21 mm², has an impedance bandwidth range from 2.38 GHz to 12.0 GHz for voltage standing-wave ratio (VSWR) less than 2, expect the notch band frequency 5.0?.0 GHz for HIPERLAN/2, IEEE 802.11a (5.1?.9 GHz) and C-band (4.4? GHz) for satellite and military applications.