Abstract: A frequency-reconfigurable bow-tie antenna with a continuous wide tuning range is proposed. The antenna can be electronically tuned over the lower ultrawideband (UWB) frequency band (3–6 GHz ...

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Abstract: A novel bow-tie antenna for 400 MHz ground penetrating radar (GPR) is proposed in this paper. Different from the conventional bow-tie antennal, one semicircular structure is added to each of ...

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Purpose: For this work I established as research objective the examination of antecedents (i.e., similarity of structural position, competence and sociability) and the consequences (i.e., formation of ...

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