Phased array antenna employing linear scan for wide angle orbita

Details Phased array antenna employing linear scan for wide angle orbita Phased array antenna employing linear scan for wide angle orbita

1981-06-11

1983-11-01

Lieberman, Eli

Communications: radio wave antennas

Antennas

With polarization filter or converter

343778, 343781P, H01Q 336, H01Q 1920, H01Q 1524

Patent

active

044132638

ABSTRACT:
The present invention relates to phased array antenna arrangements which comprise a linear array of feed elements where the array has an aperture which is out at a bias angle along the minor axis of the array to produce a fixed linear phase taper along the minor axis by all elements. Then by linearly scanning the array along the major axis of the aperture of the array, a beam is scanned along an arc which can be made to correspond to an orbital arc segment around a celestial body and within the field of view of the antenna arrangement when the bias angle is properly chosen. The feed elements can comprise long feedhorns or horn antenna configurations which can be used in a separate array or disposed in an array on a conjugate plane of a main cylindrical reflector when used in multiple reflector phased array antenna arrangements.

REFERENCES:
patent: 3836970 (1974-09-01), Reitzig
patent: 4203105 (1980-05-01), Dragone et al.
patent: 4257050 (1981-03-01), Ploussios
Prickett; "High Performance Antenna Assembly"; NAECON '77 Record; Dayton Ohio; May 17-19, 1977; pp. 298-302.
Dragone & Cans; Imaging Reflector Arrangement . . . BSTJ, vol. 58, No. 2; Feb. 1979; pp. 501-515.
Pollack et al.; An Unattended Earth Terminal for Satellite Communications; COMSAT Tech., Journal, vol. 4 No. 2 Fall, 1974, pp. 205-229.

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