Compact coplanar waveguide fed ultra wideband antenna with a notch band characteristic |
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Authors: | Ying-song Li Xiao-dong Yang Qian Yang Cheng-yuan Liu[Author vitae] |
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Affiliation: | College of Information and Communications Engineering, Harbin Engineering University, Harbin, Heilongjiang 150001, PR China |
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Abstract: | 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 × 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 5.0–6.0 GHz for HIPERLAN/2, IEEE 802.11a (5.1–5.9 GHz) and C-band (4.4–5 GHz) for satellite and military applications. |
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Keywords: | UWB antenna CPW-fed Notch band characteristic |
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