Patent ID: 8532226

Claim:
An extremely high frequency wireless communication receiver, comprising: a phased array radio configured to receive a plurality of incoming signals in a predetermined frequency band, wherein the predetermined frequency band has a low frequency limit approximately equal to 30 GHz and wherein the phased array radio comprises: (i) a plurality of antenna paths, wherein each antenna path is configured to handle one of the incoming signals and form a differential I/Q output signal from the incoming signal, and wherein each antenna path comprises (a) I and Q branches with a downconversion part configured to downconvert the incoming signal to a baseband, and (b) a phase-shifting part configured to apply a controllable phase shift to the incoming signal of each antenna path, such that the differential I/Q output signals formed by the plurality of antenna paths are synchronized with each other; (ii) a signal combination circuit connected to the antenna paths and configured to combine the differential I/Q output signals into a combined differential I/Q output signal; and (iii) control circuitry connected to the phase-shifting part of the antenna paths and configured to control the controllable phase shift, wherein each phase shifting part comprises a baseband part downstream from the downconversion part, and a set of variable gain amplifiers configured to assign controllable gains to each of the downconverted incoming signals in the I branch and the Q branch, and wherein the control circuitry is configured to assign the controllable gains of the variable gain amplifiers based on coefficients of a rotational matrix, wherein the coefficients of the rotational matrix are determined based on the phase shift to be applied to each incoming signal.