摘要
近年来,超材料打破了传统材料或结构的物理极限,为高效率发射天线的发展开辟了崭新的研究空间,获得了愈来愈广泛的关注.首先介绍了超材料的理论和结构研究概况,然后针对几种新型超材料技术在提高平面天线单元效率的研究工作进行了详细介绍和分析,包括非周期超材料技术、超材料作为新型辐射元或低剖面反射板等方面.最后,针对无线能量收集系统对高效率天线阵列的需求,介绍了高次模激励技术和新型低损耗传输线技术,以此降低阵列馈电网络的损耗,从而提高系统的整体效率.
In recent years, metamaterial has broken physical limitations of traditional materials and structures, which would bring new development of high-efficiency transmitting antennas.It has got more and more attentions.In this paper,the research overview of the theory and structure of metamaterial have been introduced at first. Further-more,the researches of several novel metamaterial technologies on improving the efficiency of planar antenna ele-ments are specifically given and analyzed,including non-periodic metamaterial technology,metamaterial as novel ra-diation elements or low-profile reflection plane,etc.Finally,aiming at the requirement of wireless energy harvesting on high-efficiency antenna array,excitations using high-order modes and novel low-loss transmission lines have been introduced for low-loss feeding networks of antenna arrays and higher system efficiency.
出处
《南京信息工程大学学报（自然科学版）》
CAS
2017年第1期54-63,共10页
Journal of Nanjing University of Information Science & Technology（Natural Science Edition）
基金
国家自然科学基金青年基金项目(61601224)
江苏省自然科学基金青年基金项目(BK20160844)
关键词
超材料
低损耗
非周期
高次模
效率
metamaterial
low loss
non-periodic
high-order modes
efficiency
