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A compact (35 × 30 × 0.8 mm 3 ) umbrella shaped ultra wideband antenna that gives wide impedance bandwidth of more than 123% with low dispersion, 3–5 dBi gain and average efficiency of 84% is proposed. The antenna is tested in close proximity of soil. Satisfactory results ensure its ability to work as GPR antenna.
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Kundu et al. (2017) studied this question.
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