Patent ID: 9686001
Date: 2017-06-20
CPC Classifications: H04B

Claim:
1. An apparatus for beam-steering an antenna array comprising: a plurality of feed ports for coupling to respective phase-mode ports of an antenna array's feed network; a main port coupled to a transceiver; a phase-mode feed port selector for selectively coupling first and second signal lines to respective ones of the plurality of feed ports; and a signal processing circuit for processing signals between the first and second signal lines and the main port, the processing allowing independent scanning of a main beam of the antenna array in both a radial direction and a circumferential direction relative to an array axis perpendicular to a plane of the antenna array, wherein the signal processing circuit comprises: wherein the phase-mode feed port selector further couples a third signal line to a respective one of the plurality of feed ports through a fourth phase shifter controlled in opposition to the first phase shifter to the first hybrid splitter/combiner.