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This paper presents the design, fabrication, and measurement of a novel ultra‐wideband (UWB) fractal monopole antenna. This antenna uses trapezoidal shapes with hexagonal slots to achieve highly Ultra‐Wideband characteristics. The antenna is practically fabricated and tested. Measured results show a good agreement with simulated results and demonstrate that the proposed fractal antenna provides an ultra bandwidth of about 126% ranging from 3.1 to 13.67 GHz for the reflection coefficient less than −10 dB, outperforming the basic hexagonal design. This impedance performance makes the antenna suitable for C, X, K band applications.
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Aissaoui et al. (2016) studied this question.
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