移动通信2026，Vol.50Issue(9)：75-82,8.DOI:10.3969/j.issn.1006-1010.20260629-0003
面向低空通感网络的射频谐振波束技术
Radio-Frequency Resonant Beam Technology for Low-Altitude Integrated Sensing and Communication Networks
摘要
Abstract
Low-altitude terminals are characterized by three-dimensional mobility,attitude variations,limited energy resources,and complex propagation environments,imposing stringent requirements on communication,sensing and localization,and continuous power supply.A radio-frequency resonant beam system(RF-RBS)exploits phase conjugation,retrodirectivity,and spatial closed-loop feedback to establish self-aligning energy-focusing links without explicit channel state information estimation or complex beam training,and can be further extended to support communication,power transfer,and cooperative sensing and localization.First,the system architecture and operating procedure of RF-RBS are introduced,and its phase-conjugation and retrodirective mechanisms under frequency-division duplexing are analyzed.The evolution of spatial modes and the power stabilization process under closed-loop feedback are then discussed,followed by a systematic review of research advances in communication,power transfer,cooperative sensing and localization,and electromagnetic safety.Finally,considering the high dynamics of low-altitude networks,resource constraints of terminals,and the demand for multi-function integration,the key challenges and future research directions of RF-RBS for low-altitude applications are analyzed.Existing studies indicate that RF-RBS has the potential to achieve adaptive beam focusing,reduce channel acquisition overhead,and facilitate the integration of communication,sensing,and power transfer,providing a new technical approach to reliable connectivity and sustained operation in low-altitude integrated sensing and communication networks.关键词
低空通感网络/射频谐振波束/相位共轭/方向回溯/闭环反馈/无线能量传输/感知定位/电磁安全Key words
low-altitude integrated sensing and communication networks/radio-frequency resonant beam/phase conjugation/retrodirectivity/closed-loop feedback/wireless power transfer/sensing and localization/electromagnetic safety分类
信息技术与安全科学引用本文复制引用
牟江川,方稳,刘庆文,陈文..面向低空通感网络的射频谐振波束技术[J].移动通信,2026,50(9):75-82,8.基金项目
国家自然科学基金项目"智能反射面辅助的腔内激光无线数能同传关键技术研究"(62301308) （62301308）
