Omnidirectional antenna with a directivity diagram adjustable in

Details Omnidirectional antenna with a directivity diagram adjustable in Omnidirectional antenna with a directivity diagram adjustable in

1977-11-28

1979-03-06

Lieberman, Eli

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343773, 343783, H01Q 1304

Patent

active

041433777

ABSTRACT:
An antenna of the discone type is omnidirectional in bearing and has a diagram whose directivity in elevation can be adjusted. At the apex end of each cone a dielectric disc of predetermined thickness is inserted parallel to the base of the cone concerned. In the central portion of the antenna these two discs create conditions for the propagation of energy which are different from those existing outside the discs, the result being an improvement in the phase pattern in the radiating aperture of the antenna.

REFERENCES:
patent: 2599896 (1952-06-01), Clark et al.

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