DIRECTIONAL ANTENNA

Patent · 20 May 1958

OSTI ID:4309535

Bittner, B J

A high-frequency directional antenna of the 360 d scaring type is described. The antenna has for its desirable features the reduction in both size and complexity of the mechanism for rotating the antenna through its scanning movement. These advantages result from the rotation of only the driven element, the reflector remaining stationary. The particular antenna structure comprises a refiector formed by a plurality of metallic slats arranged in the configuration of an annular cage having the shape of a zone of revolution. The slats are parallel to each other and are disposed at an angle of 45 d to the axis of the cage. A directional radiator is disposed inside the cage at an angle of 45 d to the axis of the cage in the same direction as the reflecting slats which it faces. As the radiator is rotated, the electromagnetic wave is reflected from the slats facing the radiator and thereafter passes through the cage on the opposite side, since these slats are not parallel with the E vector of the wave.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-12-014455
• Assignee: U. S. Atomic Energy Commission
• Patent Number(s): US 2835890
• OSTI ID: 4309535
• Country of Publication: United States
• Language: English

Related Subjects

ANTENNAS
CONFIGURATION
ELECTRIC FIELDS
ELECTROMAGNETIC WAVES
ELECTRONIC EQUIPMENT
FREQUENCY
METALS
PATENT
PATENTS
PLATES
REFLECTORS
ROTATION