Patent ID: 9413067
Filing Date: 2016-08-09
CPC Classification: H01Q

Claim Text:
1. An apparatus for beam-steering, comprising: a first hybrid splitter/combiner connected to a 0-th phase-mode feed of an array of antenna elements; a second hybrid splitter/combiner, wherein an output of the second splitter/combiner comprises a main output beam; a first pair of variable phase shifters connecting the first hybrid splitter/combiner to the second hybrid splitter/combiner, wherein the first pair of variable phase shifters control a steering direction of the main output beam radial with respect to an array axis by adjustments of respective phases of the variable phase shifters, wherein the respective phases are equal in magnitude and opposite in sign, and wherein the array axis is perpendicular to a plane of the array; and a third variable phase shifter connecting a 1-st phase-mode feed of an array of elements to an input of the first hybrid splitter/combiner, wherein the third variable phase shifter is configured to independently control a direction of the main output beam in a direction circumferential with respect to the array axis.