⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种工作在70-100GHz的混频器优先接收机前端，用于毫米波大规模MIMO阵列，在28nm CMOS工艺中实现了12mW的低功耗。通过采用无源混频器和基带阻抗合成技术，解决了毫米波接收机在高线性度、低功耗和宽带宽之间的权衡问题。
Multi-user multiple-input multiple-output (MIMO) systems are promising enablers for high-capacity wireless access in next-generation mobile networks. Leveraging antenna arrays at the access point, narrow beams can be steered to different users simultaneously, enhancing spectral efficiency through spatial multiplexing. By employing a number of array elements, M, much larger than the number of users, K, (i.e. massive MIMO), simple linear beamforming algorithms can achieve nearly optimal operation [1]. Operating massive MIMO systems at mm-waves results in compact antenna arrays and wide channel bandwidths. Within the available spectrum, the E-Band communication bandwidth (71 to 76GHz, 81 to 86GHz, and 92 to 95GHz) has recently gained attention for both access and wireless backhaul, due to low oxygen attenuation. Hardware implementation of mm-wave massive MIMO systems poses several challenges and opportunities. On one hand, array gains allow one to relax the
Lorenzo Iotti, Greg LaCaille, Ali M. Niknejad
University of California, Berkeley, CA