Antenna diversity control for beamforming in an antenna array
First Claim
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1. A method for controlling an array of antennas, the method comprising:
- receiving signals from a plurality of antenna elements in an adaptive array antenna;
determining a digital amplitude and a phase for each of the signals;
spreading signals out by multiplying parameters in accordance with a tracking circuit output,determining a scale factor and a pair of values for each of the antenna elements;
determining a reference signal;
determining a phase angle correction between the reference signal and each of the signals,modulating each of the signals by a set of normalized weights, andcombining the modulated signals from all antenna elements as an input to a single input receiver,wherein the pair of values includes a phase shift for each of the signals.
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Abstract
Techniques for controlling diversity beamforming antenna array is disclosed. One aspect of the techniques is to utilize low-power and low area circuits to achieve combining gains, mitigate the effects of multipath fading, provide spatial suppression and diversity gains to a single input receiver. The device is radiofrequency transparent yet provides antenna gain by selective three G and four G code acquisition and tracking of a desired downlink channel.
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1 Claim
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1. A method for controlling an array of antennas, the method comprising:
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receiving signals from a plurality of antenna elements in an adaptive array antenna; determining a digital amplitude and a phase for each of the signals; spreading signals out by multiplying parameters in accordance with a tracking circuit output, determining a scale factor and a pair of values for each of the antenna elements; determining a reference signal; determining a phase angle correction between the reference signal and each of the signals, modulating each of the signals by a set of normalized weights, and combining the modulated signals from all antenna elements as an input to a single input receiver, wherein the pair of values includes a phase shift for each of the signals.
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Specification