An on-off receiver array for low-power scaling of mmWave massive MIMO

Low-power solutions are crucial for realizing the throughput gains of mmWave massive MIMO in base station to mobile links, particularly for the battery-powered handset. LNA power consumption is a significant bottleneck in scaling to large arrays at high frequencies. We propose a simplified phased array architecture for a 140 GHz receiver that uses activation switches in place of noisy phase shifte...