Broad band dipole element and array

Details Broad band dipole element and array Broad band dipole element and array

1996-10-11

1999-04-06

Wimer, Michael C.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343817, 343821, H01Q 928, H01Q 2108

Patent

active

058924868

ABSTRACT:
An improved dipole antenna array with high radiation directivity and broad bandwidth is disclosed. Each dipole antenna is driven by a balun structure composed of an unbalanced J-shaped transmission line placed over a pair of ground plane extensions that are separated by a channel. The dipole antenna arms are connected to an intermediate point on the ground plane extensions so that the balun structure extends beyond the dipole antenna. The length of the dipole arms, their position on the ground plane extensions, and the extent to which the balun extends beyond the dipole antenna can be chosen to determine the desired operating frequency range. The antennas are fabricated on ground and circuit planes separated by a dielectric material and composed of conducting material deposited on dielectric sheets. A planar array of dipole antennas is formed with the ground plane circumscribing each antenna in the array to improve directivity. An electromagnetic reflecting plane is placed parallel to the array to increase radiation efficiency.

REFERENCES:
patent: Re29296 (1977-07-01), Krutsinger et al.
patent: 3239838 (1966-03-01), Kelleher
patent: 3747114 (1973-07-01), Shyhalla
patent: 3845490 (1974-10-01), Manwarren et al.
patent: 3987445 (1976-10-01), Olyphant, Jr.
patent: 3995277 (1976-11-01), Olyphant, Jr.
patent: 4054874 (1977-10-01), Oltman, Jr.
patent: 4204213 (1980-05-01), Wheeler et al.
patent: 4287528 (1981-09-01), Ellis, Jr.
patent: 4686536 (1987-08-01), Allcock
patent: 4825220 (1989-04-01), Edward et al.
patent: 4847626 (1989-07-01), Kahler et al.
patent: 4916457 (1990-04-01), Foy et al.
patent: 4943811 (1990-07-01), Alden et al.
patent: 5039994 (1991-08-01), Wash et al.
patent: 5061944 (1991-10-01), Powers et al.
patent: 5097884 (1992-03-01), Turner
patent: 5214439 (1993-05-01), Reed
patent: 5274391 (1993-12-01), Connolly
patent: 5280286 (1994-01-01), Williamson
patent: 5371509 (1994-12-01), Wallace, Jr. et al.
patent: 5387919 (1995-02-01), Lam et al.
patent: 5467099 (1995-11-01), Bonebright et al.
J. P. Daniel, et al., "Research on Planar Antennas and Arrays: `Structures Rayonnantes`", IEEE Antennas Propaga. Mag., vol 35, No. 1, pp. 14-38, Feb. 1993, as reprinted in Pazar and Schaubert, MicroStrip Antennas, IEEE Press, pp. 26, 43-44.

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