A U-Shaped Slot UWB Antenna with Flexible and Wide Tunable Dual Notch Band

A U-Shaped Slot UWB Antenna with Flexible and Wide Tunable Dual Notch Band

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A coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna with flexible and wide tunable dual bandnotched characteristics is acupatch proposed in this paper.The dual band-notched function is achieved by using an U-shaped slot inserted into the ellipse radiation patch and by using an elliptic parasitic slit placed near the ground plane.The wide tunable band-notched characteristic is implemented by adjusting the length of U-shaped slot and click here by adjusting the length of ellipse parasitic slit.The design aims to achieve wide reconfigurable band-notched features on the UWB antenna.

The simulated results indicate that the proposed antenna has a wide bandwidth (VSWR under 2) from 2.9GHz to 12.6GHz with fractional bandwidth of 125%, and has a wide tunable notch band center frequency from 4.5GHz to 12.

4GHz.