重庆大学学报2024，Vol.47Issue(2)：119-132,14.DOI:10.11835/j.issn.1000-582X.2023.254
振动永磁式机械天线的动力学特性研究
Dynamic characteristics of the mechanical antenna based on vibrating permanent magnet
摘要
Abstract
In the traditional field of wireless communication,the application of long-wave communication is constrained on small and medium-sized platforms due to the requirement of large sized signal-transmitting antennas.This paper proposes and develops a three-degree-of-freedom cut-out beam structure of the vibration permanent magnet type mechanical antenna prototype based on the inverse piezoelectric effect,vibration theory,and Maxwell's equations.It establishes an electric-mechanical-electromagnetic energy theory model and investigates the radiation influencing factors of the mechanical antenna along with its frequency modulation technique.The experimental results validate that electromagnetic wave signals can be frequency-modulated by exciting different vibration modes of the mechanical antenna prototype.This research offers novel theoretical and technical perspectives for low-band signal communication.关键词
机械天线/逆压电效应/多模态/频率调制Key words
mechanical antenna/inverse piezoelectric effect/multi-modal/frequency modulation分类
数理科学引用本文复制引用
张苗,王积硕,宁慧铭,黄楷焱,袁卫锋..振动永磁式机械天线的动力学特性研究[J].重庆大学学报,2024,47(2):119-132,14.基金项目
国家自然科学资助项目(12072300).Supported by National Natural Science Foundation of China(12072300). （12072300）
