Patent ID: 6246379
Filing Date: 2001-06-12
Classification: H01Q

Abstract:
A helix antenna comprising:a power input;a 90 degree power splitter in electrical communication with said power input;first and second 180 degree power splitters in communication with said 90 degree power splitter;said power input, said 90 degree power splitter, and said first and second 180 degree power splitters forming a phase quadrature feed network for said antenna;a support tube of dielectric material;a plurality of disk separators of dielectric material mounted on and supported by said tube and spaced from each other and extending radially outwardly from said tube;four elongated elements wound around said support tube and spaced therefrom by said disk separators, said elements being supported by said disk separators, said elements extending toward a center feed point of an upper of said disk separators and comprising radial feed arm portions of said four elements; andfirst and second radially opposite pairs of feed cables wound around said support tube, extending from a lower of said disk separators to the upper disk separator and in communication, respectively, with said first and second 180 degree power splitters.