A miniaturized mechanical antenna based on FEP/ THV unipolar electrets for extremely low frequency transmission

作     者：Yong Cui Ming Wu Zhaoyang Li Xiao Song Chen Wang Haiven Yuan Zhi-Xin Yang Junwen Zhong 

作者机构：School of Automation Science and Electrical EngineeringBeihang UniversityBeijing 100191China Department of Electromechanical Engineering and Centre for Artificial Intelligence and RoboticsUniversity of MacaoMacaoSAR 999078China School of Cyber Science and TechnologyBeihang universityBeijing 100191China State Key Laboratory of Internet of Things for Smart City and Department of Electromechanical EngineeringUniversity of MacaoMacaoSAR 999078China 

出 版 物：《Microsystems & Nanoengineering》 (微系统与纳米工程（英文）)

年 卷 期：2022年第8卷第3期

页      面：223-233页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

基　　金：supported in part by the National Natural ScienceFoundation of China(51707006) the Natural Science Foundation of Bejing(4192033) the Science and Technology Development Fund,Macao SAR(Grant no.0018/2019/AKP,SKL-IOTSC(UM)-2021-2023,0059/2021/AF,0040/2021/A1) 

主　　题：antenna propylene FEP 

摘      要：An electret-based mechanical antenna(EBMA),which can transmit extremely low frequency(ELF)electromagnetic signals,has the advantages of miniaturization and high transmitting efficiency,with great potential applications in air,underwater,and underground *** improve the charge density of the electret,which is a key factor in determining the radiation performance of an EBMA,this work proposes a fluorinated ethylene propylene/terpolymer of tetrafluoroethylene,hexafluoropropylene and vinylidene fluoride(FEP/THV)unipolar electret exhibiting negative polarity,reaching a total charge density up to-0.46 mC/m^(2) for each layer of *** transmission distances can be achieved in sea water,soil,and air using a 3-layer-FEP/THV-based EBMA with a compact volume of 5×10^(-4) m^(3).As an application demonstration,binary ASili-coded ELF information ofBUAAis successfully transmitted with a power consumption5W.