Printed circuit board-configured dipole array having matched imp

Details Printed circuit board-configured dipole array having matched imp Printed circuit board-configured dipole array having matched imp

1998-03-17

2000-04-18

Le, Hoanganh

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343817, 343818, H01Q 928

Patent

active

060520981

ABSTRACT:
To reduce sidelobes in the radiation pattern of a phased array dipole antenna, a plurality of parasitic antenna elements are provided adjacent to the array of dipole elements of the antenna. The driven elements of the dipole array and associated director elements are formed as patterned conductor elements on one surface of a thin dielectric substrate. Feed elements for the driven dipole array also comprise patterned conductor elements formed on an opposite surface of the substrate. The feed elements have a geometry and mutually overlapping projection relationship with the conductors of the driven dipole elements, so as to form a matched impedance transmission line through the dielectric substrate with the patterned dipole elements. The parasitic elements are formed on additional dielectric substrates spaced apart from and parallel to the thin dielectric substrate upon which the driven dipole array is formed.

REFERENCES:
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patent: 5231406 (1993-07-01), Sreenivas
patent: 5382959 (1995-01-01), Pett et al.
patent: 5612706 (1997-03-01), Podell

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