超颖材料在无线电能传输中的应用方法  

Application Methods of Metamaterials in Wireless Power Transfer

作　　者：姚辰[1] 马殿光[1] 唐厚君[1,2] 张颖异[1] 蔡位焜 

机构地区：[1]上海交通大学电气工程系,上海200240 [2]国家能源智能电网(上海)研发中心,上海200240

出　　处：《电工技术学报》2015年第19期110-119,共10页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51277120)资助项目

摘　　要：系统地阐述了超颖材料在无线电能传输中应用时所涉及到的部分理论与设计方法。从不同的出发点解释了超颖材料改善无线电能传输性能的作用机理,分别介绍了超颖材料的负折射效应,磁偶极子耦合模型和电磁坐标变换理论。此外,为说明如何实现超颖材料所需的电磁本构参数,还介绍了两种超颖材料的设计方法:原理模型法和S参数反演提取法。原理模型法推导得到简单形状的超颖材料人工介质微结构单元的电磁参数,对获取电磁参数具有一定的启发意义;而实际设计中通常采用S参数反演提取法,通过有限元仿真及反演公式得到结构更复杂的人工介质微结构单元的电磁参数。The design methods and most related theories of metamaterials applied in wireless power transfer are elaborated. Three important theories, i. e. the negative refraction effect, the coupling model of magnetic dipoles,and the coordinates transformation theory,are introduced to explain the mechanism of improving the performance of wireless power transfer by metamaterials. In addition, two design methods, including the principle model method and the S-parameters retrieval method, are presented to illustrate the realization of specific electromagnetic constitutive parameters. The principle model method is theoretically derived for simple micro-structures,which has some inspiration significance for acquiring the electromagnetic parameters. And S-parameters retrieval method is more suitable for practical designs and complicated metamaterial micro-structures with the help of finite element simulation and retrieval equations.

关 键 词：超颖材料 无线电能传输 互感增强 电磁坐标变换 

分 类 号：TM15[电气工程—电工理论与新技术] TM25[一般工业技术—材料科学与工程]