Antenna for scanning a limited spatial sector

Details Antenna for scanning a limited spatial sector Antenna for scanning a limited spatial sector

1979-04-30

1981-05-19

Lieberman, Eli

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343854, 343911L, H01Q 1906

Patent

active

042688310

ABSTRACT:
A feed system for scanning focal plane antenna systems with which a variable focal spot illumination may be achieved within the focal region of a primary antenna over a limited scanning sector is disclosed. An array of collector elements positioned to receive radiation from a scannable feed antenna is coupled to an array of radiator elements positioned in the focal region of the primary antenna, the positioning of the radiator and collector elements are such that the focal spot illumination is caused to vary with the scan angle of the antenna.

REFERENCES:
patent: 3170158 (1965-02-01), Rotman
patent: 3245081 (1966-04-01), McFarland
patent: 3384890 (1968-05-01), List et al.
patent: 3631503 (1971-12-01), Tang et al.
patent: 3835469 (1974-09-01), Chen et al.
Tong et al., Wide Angle Limited Scan Array Antenna Technique Study, NTIS AD 780048, May 1974, pp. 1-6.

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