Apparatus and method for digital beam-forming with low-resolution quantization
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United States of America Patent
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Nov 28, 2017
Grant Date -
Jan 12, 2017
app pub date -
Sep 23, 2016
filing date -
Jun 11, 2014
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Abstract
An antenna arrangement configured for digital beam-forming of a transmit signal comprising; a number N>1 of digital to analog converters, DACs, each of the N DACs being arranged to receive one respective digital transmit signal component, and to convert and output an analog transmit signal component, each of the N DACs having a respective resolution below a resolution required to fulfill a regulatory radio requirement in an interchangeable antenna arrangement arranged for transmission by a single antenna element connected to a single DAC; and N antenna elements, each of the N antenna elements being configured to receive one respective analog transmit signal component and to transmit the analog transmit signal component as part of the digitally beam-formed transmit signal.
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