Scanned antenna array comprising a ferrite scanning line source

Details Scanned antenna array comprising a ferrite scanning line source Scanned antenna array comprising a ferrite scanning line source

1995-02-15

2000-08-15

Gensler, Paul

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

333 241, 333137, 333158, H01Q 322, H01P 1195, H01P 512

Patent

active

061043427

ABSTRACT:
A scanned antenna array and the ferrite scanning source controlling the array which includes a ferrite scanning line source (21) comprising a ferrite element (23) having an RF input (25), a current source (31) extending through the ferrite element and a plurality of RF outputs (27) spaced apart along the ferrite element and an antenna element (33) coupled to each of the RF outputs. Each of the RF outputs is equally spaced apart from adjacent RF outputs. The ferrite element has an input end portion and an output end portion and an axis therebetween, the RF outputs being disposed along the axis. The ferrite element comprises a pair of ferrite toroids (43, 45) spaced apart by a layer of dielectric material (47), the RF outputs (49) being disposed in the dielectric material.

REFERENCES:
patent: 3212031 (1965-10-01), Reggia et al.
patent: 3277401 (1966-10-01), Stern
patent: 4884045 (1989-11-01), Alverson et al.
"A New Technique in Ferrite Phase Shifting for Beam Scanning of Microwave Antennas" F. Reggia & E. G. Spencer, Proceedings by the IRE, Nov. 1957, pp. 1510-1517.
"Inexpensive Phased Array Opens Up New Radar Applications", Richard T. Davis, Microwaves, Aug., 1975, 2 pages.
"Array Excitation Structure" Ferrite Steered Subarray Final Report, Jan., 1983, pp. 29-41.

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