Patent ID: 7280848
Filing Date: 2007-10-09
Classification: H01Q

Abstract:
1. An active beamforming antenna, comprising: an array of antenna elements arranged in a plurality of sub-arrays to define the array; a plurality of power splitters, each power splitter being associated with a respective one of the plurality of sub-arrays and having an input and a plurality of outputs; a plurality of multicarrier power amplifiers, each multiplier power amplifier being operatively coupled to a respective one of the outputs of the power splitters and a respective one of the antenna elements of the array; and a plurality of predistortion circuits, each predistortion circuit being associated with a respective one of the sub-arrays and operatively coupled to a respective one of the inputs of the power splitters to operatively couple with the antenna elements, the predistortion circuit being capable to suppress generation of intermodulation distortion.