Dual polarization antenna couplets

Details Dual polarization antenna couplets Dual polarization antenna couplets

1977-12-27

1980-09-16

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343819, 343846, H01Q 1926, H01Q 938

Patent

active

042233178

ABSTRACT:
A dual polarized antenna couplet, comprised of a vertical quarter-wavelength radiator driven at its lower end and centered on a half-wavelength horizontal dipole radiator drooping its ends about 45.degree. from the center where it is driven in phase with the vertical radiator, produces a polarized wavefront at an angle between the vertical and the horizontal, such as 45.degree. when both are driven equally, with 1.5 db bi-directional gain in the horizontal pattern and in the vertical pattern as well. A similar parasitic couplet is used as a reflector behind the driven couplet, and two or more parasitic couplets are used as directors in front of the driven couplet. The elements of the antenna are coated with dielectric material to achieve a shortening effect of about 11% over the normal lengths of the antenna elements otherwise required.

REFERENCES:
patent: 2425585 (1947-08-01), Wheeler
patent: 3404404 (1968-10-01), Theakston
patent: 3671973 (1972-06-01), French
patent: 3771162 (1973-11-01), Dienes
patent: 3821742 (1974-06-01), Pollard
patent: 3922684 (1975-11-01), Wright
Utica Communications Corp., Advertisement, 1 page, 1965.

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