360-Degree scanning antenna with cylindrical array of slotted wa

Details 360-Degree scanning antenna with cylindrical array of slotted wa 360-Degree scanning antenna with cylindrical array of slotted wa

1981-06-05

1984-07-03

Lieberman, Eli

Communications: radio wave antennas

Antennas

Slot type

343771, H01Q 1310

Patent

active

044582501

ABSTRACT:
A 360 degree scanning antenna is disclosed which includes a mechanism for anning the main beam of a cylindrical array in azimuth and over a limited angle in elevation in which a primary feedhorn illuminates a geodesic lens which in turn illuminates the cylindrical array structure. Energy is coupled from the parallel plate structure of the feedhorn assembly into the individual waveguides of the array via dielectric wedges extending from the waveguides.
Scanning in elevation is accomplished by changing the transmitter frequency and in azimuth by rotating the primary feedhorn assembly.

REFERENCES:
patent: 2653239 (1953-08-01), Chu et al.
patent: 2836822 (1958-05-01), Ehrlich et al.
patent: 3072905 (1963-01-01), Wilkes
patent: 3230535 (1966-01-01), Ferrante et al.

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