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A novel CPW‐fed hexagonal‐shape monopole‐like ultrawideband (UWB) antenna is proposed for UWB applications. The proposed antenna posses a method to minimize the monopole antenna by using a hexagonal shape over the conventional monopole patch antenna to lower the height of the antenna. The ground is vertically extended toward two sides of the single radiator. Therefore, the large space around the radiator that is usually wasted can be effectively saved. The antenna is practically fabricated and simulated. Measured results show a good agreement with simulated results. The prototype with very compact overall size of 25 × 23 × 1.6 mm 3 achieves good impedance matching, stable radiation patterns, and constant group delay over an operating bandwidth of 2.71–12.61 GHz (9.9 GHz).
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Gautam et al. (2013) studied this question.
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