Patent ID: 9666942
Date: 2017-05-30
CPC Classifications: H01Q,H04B

Claim:
1. A method comprising: receiving a signal from a remote transmitter at an antenna array comprising a plurality of antenna elements; mixing the received signal with in-phase and quadrature-phase Local Oscillator (LO) signals from Voltage Controlled Oscillators (VCOs) of a coupled VCO array; configuring each Phase Locked Loop (PLL) of a plurality of PLLs to receive an in-phase output of the mixing corresponding to a VCO of the coupled VCO array and a quadrature-phase output of the mixing corresponding to another VCO adjacent to the VCO in the coupled VCO array as inputs thereto; feeding back an output of the each PLL to the VCO of the coupled VCO array; driving the in-phase and the quadrature-phase outputs of the mixing from in-phase and quadrature-phase outputs of a transmit modulator instead of the each PLL being driven by the in-phase and the quadrature-phase output of the mixing; transmitting, in a direction of the remote transmitter, a signal from the antenna array based on the driving of the in-phase and the quadrature-phase outputs of the mixing from the transmit modulator; and sensing a servoed state related to phase relationships between the LO signals and holding the servoed state through a sample and hold circuit coupled in a feedback path between the output of the each PLL and the VCO during the transmission of the signal in the direction of the remote transmitter.