AXIAL MODE ELLIPTICAL CROSS-SECTION HELICAL ANTENNA

摘要

This article gives an experimental study of the elliptical helical antenna with circular polarization characteristics. It is observed that the axial ratio bandwidth of the elliptical helix remains stable when the eccentricity of the ellipse is low (below 0.77), and when the cross section approaches more prolate, the AR bandwidth becomes smaller with the increment of the ellipse eccentricity. The variety trends of the AR and HPBW are shown and radiation patterns of elliptical helix with eccentricity 0.89 have been given.