Radio navigation antenna system for aircraft

Details Radio navigation antenna system for aircraft Radio navigation antenna system for aircraft

1979-12-06

1981-04-07

Moore, David K.

Communications: radio wave antennas

Antennas

With means for moving directive antenna for scanning,...

343106R, H01Q 312

Patent

active

042609925

ABSTRACT:
A radio navigation antenna system suitable for use in an aircraft is disclosed. The fed element of the system is stationary, being at one end of a coaxial conductor which extends through a hollow shaft of a motor. Mounted around the hollow shaft is a ground plane disc capacitively coupled to the outer sleeve of the coaxial conductor, thereby avoiding the use of brushes in the system. A cylindrical dielectric antenna support is mounted on the ground plane disc around the fed element. A T-shaped reflector is formed by a conductive layer on the cylindrical surface of the antenna support.

REFERENCES:
patent: 2889552 (1959-06-01), Thomas et al.
patent: 3054107 (1962-09-01), Engel et al.
patent: 3541562 (1970-11-01), Dodington et al.
patent: 3790943 (1974-02-01), Pickles et al.
patent: 4071847 (1978-01-01), Pickles

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