Charge and current distributions on, and input impedance of moderately fat transmitting crossed-monopole antennas.
McDowell, Elmer Jay
Burton, Robert W.
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Charge and current distributions in the vicinity of the cross junction for several configurations of electrically long, moderately fat crossed-monopole transmitting antennas over a ground plane were measured and compared with the equivalent monopole. The input impedance of these configurations at the ground plane/antenna interface was also experimentally determined. Junction conditions such that there would he a maximum current/minimum charge and minimum current/maximum charge on the vertical monopole were examined. The effect or. the input impedance and current/charge distribution or adding resonant and antiresonant horizontal cross members to the junction was investigated and displayed. For purposes of physical understanding, a zero-order explanation was given in terms of the multiple resonances present on the crossed-monopole as compared with the reference monopole.
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NPS Report NumberNPS 52Zn76031
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