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QUADRIFILAR HELIX ANTENNA SYSTEM WITH GROUND PLANE
QUADRIFILAR HELIX ANTENNA SYSTEM WITH GROUND PLANE
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机译:带地面平面的四螺旋螺旋天线系统
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摘要
A quadrifilar helix antenna system with a finite ground plane has a pair of bifilar helical elements extending upwardly from the finite ground plane. A symmetrical array of monopole elements surrounds the lower portion of the pair of bifilar helical elements in the near field so as to load the lower portion and thereby raise the phase center of the antenna to improve the circularly polarized far-field radiation at low elevation angles.
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