⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一款23-30GHz混合波束成形MIMO接收机阵列，采用闭环多级前端波束成形器，旨在解决未来5G及动态环境（如AR/VR、车联网）中毫米波窄波束的快速精确对准与跟踪问题。通过全视场动态波束成形，提升了链路可靠性与低延迟性能。
Millimeter-wave massive MIMOs leverage large array size to enhance the link budget and spatial selectivity, but their resulting narrow beamwidth substantially complicates the transmitter-receiver (TX-RX) alignment. Unlike most existing “static” applications (e.g., mm-wave HDTV transmission), many future mm-wave links will operate in highly “dynamic” environments, such as wireless AR/VR and vehicle-/drone-/machine-based links, necessitating rapid and precise beamforming/-tracking for high link reliability and low latency. Densely deployed mm-wave nodes will also result in future congested/contested environments, requiring spatially tracking/rejecting unknown blockers (unknown frequency, angle-of-arrival AoA, or modulation). Most existing RF/analog beamformers (BFs) are open-loop circuits per se, which require phase control signals from extensive baseband computation, while digital beamforming relies even more on the baseband DSP. A recent mm-wave link in
Min-Yu Huang, Taiyun Chi, Fei Wang, Tso-Wei Li, Hua Wang
Georgia Institute of Technology, Atlanta, GA