Power-Efficient Design Techniques for mm-Wave HybridDigital FDDFull-Duplex MIMO

Abstract

This article describes system and circuit design techniques to enhance power efficiency and incorporate new features in millimeter-wave multi-input–multi-output (MIMO) transceivers. The higher peak-to-average power ratio (PAPR) of the signal transmitted from a digital beamformer (DBF) or a fully connected hybrid beamforming (FC-HBF) transmitter compared with the conventional partially connected hybrid beamforming (PC-HBF) transmitter is identified for the first time. It is then shown that when a po