差分馈电介质谐振器天线技术研究进展  

Progress in Differentially Fed Dielectric Resonator Antennas

作　　者：唐慧[1] 陈建新[1] TANG Hui;CHEN Jianxin(School of Information Science and Technology,Nantong University,Nantong 226019,China)

机构地区：[1]南通大学信息科学技术学院,江苏南通226019

出　　处：《南通大学学报（自然科学版）》2020年第2期18-29,共12页Journal of Nantong University(Natural Science Edition)　

基　　金：国家自然科学基金项目(61501265);江苏省自然科学基金项目(BK20161281)。

摘　　要：差分馈电的介质谐振器天线(dielectric resonator antenna,DRA)兼具DRA和差分馈电天线的优势,近年来得到了广泛的关注。文章介绍了差分馈电DRA的工作模式特征和馈电机制,归纳并分析了十几年来差分馈电DRA在可重构、双极化、带宽拓宽、新型加工工艺等方面的系列研究成果,这些成果显示了差分DRA不仅保留了DRA的尺寸小、辐射效率高、设计自由度高等优势,还能直接应用于差分微波系统,具有比对应的单端馈电DRA更为优异的杂散相应和交叉极化抑制度以及双极化端口隔离度等,现有研究还同时展示了其研究方向的多样性。最后总结了差分馈电DRA的优点和设计难点,并讨论了其发展方向。A differentially fed dielectric resonator antenna(DRA),which shows the advantages of both a DRA and a differentially fed antenna,has attracted extensive attention recently.In this paper,the characteristics of the operation modes and feeding mechanism of a differentially fed DRA are introduced,and the research on differentially fed DRAs of the last dozen years in the re-configurability,the dual-polarization,the wideband and the novel processing technologies and so on are summarized and analyzed.A series of research results presents that a differentially fed DRA not only remain the features of small size,high radiation efficiency and design degrees of freedom benefiting from DRA,but also can be directly applied to the differential microwave systems with more excellent performance of spurious rejection,cross polarization suppression and port isolation than the single-ended counterpart.The efforts also reveal the research diversity of a differentially fed DRA.Finally,the advantages and design difficulties of a differentially fed DRA are summarized,and its development direction is discussed.

关 键 词：差分馈电天线 介质谐振器天线 可重构天线 双极化天线 宽带天线 

分 类 号：TN820[电子电信—信息与通信工程]