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We present a compact printed ultra‐wideband (UWB) antenna with a band‐notched characteristic. A modified ground plane is introduced to achieve a wide impedance bandwidth from 3 to 13.4 GHz with S11<‐ 10dB. By inserting an arc‐shaped slot in the radiating patch, the notch frequency band at 3.4–3.7 GHz is obtained. An equivalent circuit model and parametric studies are given to explain the principle...
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