波导式双正-近零媒质加载双频微带天线  

Dual-frequency Microstrip Antenna Loaded with DPS-NIZ Waveguided Metamaterial

作　　者：江鸽蓝 杨歆汨[1] 刘学观[1] 

机构地区：[1]苏州大学电子信息学院,苏州215006

出　　处：《微波学报》2016年第6期11-15,共5页Journal of Microwaves

基　　金：国家自然科学青年基金(61301076);江苏省基础研究计划青年基金(BK20130326)

摘　　要：提出了一种基于嵌入式弯曲线(EML)和互补金属开口谐振环(CSRR)结构的波导式双正-近零分层人工媒质,将其加载在微带贴片天线上以实现双频工作特性。理论分析以及仿真和实测结果表明:加载了分层人工媒质的双频微带天线,两个最低阶谐振模式分别是TM010和修正型TM020模式,且该天线在这两个谐振频点上具有比较一致的边射式辐射特性。本文提出的双频微带天线具有结构紧凑、易于用印刷电路板工艺进行一体化制造的优点。A stratified waveguided artificial metamaterial with partial double positive （DPS） property and partial near zero index （NIZ） property was developed. The two segments of such metamaterial are composed of embedded meander line （EML） ceils and complementary split-ring resonator （CSRR） cells, respectively. The waveguided DPS-NIZ metamaterial was used as the equivalent substrate of microstrip patch antenna to achieve a dual-band operation characteristic. Theoretical analysis, simulation and experimental results show that the two lowest-order resonant modes of the dual-frequency antenna are TM01o and modified TM020 modes. The dual-frequency antenna has fairly consistent broadside radiation characteristic in the two operational bands. This antenna has the advantages of compactness and ease of fabrication with normal printed circuit board （PCB） process.

关 键 词：波导式人工媒质 双正-近零分层媒质 双频微带天线 

分 类 号：TN822[电子电信—信息与通信工程]