Abstract
A novel asymmetric coplanar strip feed (ACS-fed) ultra-wideband (UWB) antenna with sharp selectivity band-notched characteristics is proposed and fabricated in this paper. The high selectivity notched band, ranging from 5.0 GHz to 5.9 GHz, is achieved by coupling the parasitic strip embedded in the ground plane and the slit etched on the radiation patch. The notched band can be easily controlled by adjusting the width or the length of the strip and the slit. Moreover, due to the unique antenna structure, the proposed antenna obtains a Bluetooth band (2.4–2.5 GHz) and two stop bands (3.3–3.8 GHz and 5.0–5.9 GHz). The antenna is printed on a very small (10 mm × 25 mm × 1 mm) substrate. Finally, the proposed compact ACS-fed UWB antenna is successfully simulated, designed and measured, showing good impedance matching, stable gain and near omni-directional radiation patterns.
Published Version
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