Progress In Electromagnetics Research C
ISSN: 1937-8718
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By C.-F. Tseng and C.-H. Hsu

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A compact planar ultra-wideband (UWB) dipole antenna having band-notched characteristic is presented. The dipole antenna has the shape of a modified annular ring and is fed by a 50-Ω microstrip line. Cutting a slot in each radiating annular ring improves the input impedance bandwidth. With the design, the return loss is lower than -10 dB in 3.1 GHz-10.6 GHz frequency range. In addition, band-notched filtering properties in the 5.15 GHz-5.825 GHz are achieved by etching four rectangular slits in the ground plane, and the radiation pattern is similar to a conventional dipole antenna. A good agreement is found between the simulation and the experiment. Details of the proposed antenna design and the experimental results are presented.

C.-F. Tseng and C.-H. Hsu, "Design of a Planar UWB Dipole Antenna with Band-Notched Characteristic," Progress In Electromagnetics Research C, Vol. 11, 1-10, 2009.

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