Saihua Lin, K. Ng, H. Wong, Kwai-Man Luk, S. Wong, A. Poon
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A 60GHz digitally controlled RF beamforming array in 65nm CMOS with off-chip antennas
An RF-path 60-GHz band 4-element array using proposed phase-oversampling vector modulation is implemented in 65-nm CMOS. Digitally controlled semi-lookup table method is proposed to compensate for non-idealities in circuits, antenna array, and interfaces. Accurate and high resolution control on the gain and phase is demonstrated. The receiver features an NF of 5.6 dB and 3.5° phase resolution at a backoff of 3 dB. It dissipates 178mW from 1-V supply and obtains 18.5 dB gain for each channel.
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