Apparatus for steering a rectangular array of elements by an ang

Details Apparatus for steering a rectangular array of elements by an ang Apparatus for steering a rectangular array of elements by an ang

1976-03-03

1977-06-07

Lieberman, Eli

Communications: radio wave antennas

Antennas

With coupling network or impedance in the leadin

343100SA, H01Q 326

Patent

active

040287106

ABSTRACT:
The steering of the beam of a rectangular directional antenna array through a small angular increment in one of the orthogonal directions of the array is achieved by the derivation and processing of a small fraction of the input power as voltage in quadrature with the unphased input power in a manner which applies a doublet of first and second opposed j-direction conjugal phase shifted components to a pair of subsets of radiating elements which are bilaterally symmetrically disposed on one and the other side of a centerline of the array. An unphased component of the input power is applied to a central subset of radiating elements therebetween. The processing of the small voltage in quadrature is performed in such a manner that a single selectively variable device causes controlled inversion of the doublet of conjugal voltage components applied to the radiating element subsets.

REFERENCES:
patent: 3868695 (1975-02-01), Kadak
patent: 3940770 (1976-02-01), Fassett et al.

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