Patent ID: 11862863
Assignee: METAWAVE CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 4:
5. An antenna calibration system for use with a beam steering radar, comprising:
an optimization means to determine operational voltages for a plurality of phase shifters coupled to an antenna array in the beam steering radar, the antenna array having a plurality of antenna elements;
a test generator means to control a set of input voltages for the antenna array;
a measurement means adapted to receive signals transmitted from the antenna array;
a calibration probe configured to provide input to the antenna array;
an evaluation means coupled to the measurement means; and
a storage means coupled to the evaluation means adapted to store the operational voltages and corresponding transmit angles, wherein the optimization means is to select an optimization algorithm from a gradient descent algorithm, a genetic algorithm, or a particle swarm algorithm.