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Wideband reflector-backed folded bowtie antenna for Ground Penetrating Radar

Abstract : A loaded ultra-wideband unidirectional folded triangular bowtie antenna is proposed for ground penetrating radar (GPR) applications covering the [0.5 GHz - 3 GHz] frequency range. The behavior of the proposed structure has been modelled and optimized using full-wave numerical simulations and measurements, in far-field and near-field settings in both time and frequency domains in free space and sandy medium. In particular, an impedance bandwidth of 100% with SWR ≤ 2, a broadside gain between 5-12 dBi, for total antenna size of 1.4 λm x λm, λm free space wavelength at the center frequency, are achieved as confirmed by laboratory-controlled measurements in free space and in GPR settings.
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01634080
Contributor : Dominique Lesselier Connect in order to contact the contributor
Submitted on : Monday, November 13, 2017 - 4:45:12 PM
Last modification on : Thursday, September 9, 2021 - 3:03:01 AM

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Mohammed Serhir, Dominique Lesselier. Wideband reflector-backed folded bowtie antenna for Ground Penetrating Radar. IEEE Transactions on Antennas and Propagation, Institute of Electrical and Electronics Engineers, 2018, 66 (3), pp.1056-1063. ⟨10.1109/TAP.2017.2786295⟩. ⟨hal-01634080⟩

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