Apparatus for steering a rectangular array of elements by an angular increment in one of the orthogonal array directions

摘要

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.