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Multiphase Interpolating Digital Power Amplifiers for TX Beamforming
2022
Chips
This paper presents a four-channel beamforming TX implemented in 65 nm CMOS. Each beamforming TX is comprised of a C-2C split-array multiphase switched-capacitor power amplifier (SAMP-SCPA). This is the first use of multiphase interpolation (MPI) for beam steering. This technique is ideal for low-frequency beamforming and MIMO, as it does not require passive or LO-based phase shifters. The SCPA is ideal for use as the core element since it can perform frequency translation and data conversion,
doi:10.3390/chips1010004
fatcat:zfsi3zv4xbdtnc3j5jljbigc3q