基于超材料的新型低剖面谐振腔天线  

A New Type of Low Profile Resonant Cavity Antenna Based on Metamaterial

作　　者：曹卫平[1,2] 张静媛[1] 李思敏[1] 蔡彬[1] 

机构地区：[1]认知无线电与信息处理省部共建教育部重点实验室桂林电子科技大学,桂林541004 [2]通信网信息传输与分发技术重点实验室,石家庄050081

出　　处：《微波学报》2014年第2期34-36,41,共4页Journal of Microwaves

基　　金：国家自然科学基金(61361005);广西自然科学基金(2012GXNSFAA053233);通信网信息传输与分发技术重点实验室开放课题(ITD-U1300x/K13600xx)

摘　　要：根据法布里-珀罗谐振腔理论,设计并测试了一款新型双S低剖面天线。该天线采用加载超材料表面的方法,用以降低法布里天线的谐振距离。理论分析发现,双S型超材料表面在特定频段内具有负相位特性,根据法布里-珀罗谐振条件可以降低谐振腔体天线的剖面。实验结果证明,天线的谐振距离降低至λ/12.7,远远小于传统天线的λ/2。According to the theory of Fabry-Perot resonant cavity,a new type of double S low profile antenna is designed and measuremented. The antenna adopts the method of loading metamaterial surface to reduce resonant distance of Fabry-Perot antenna. Theoretical analysis shows that double-S metamaterial superstrate exhibits negative phase characteristic at special frequency band. According to the Fabry-Perot resonance condition,the profile of the antenna can be reduced. The results from measurement show that the resonant distance of the proposed antenna is reduced toλ /12. 7,which is far less than λ/2 of the conventional antenna.

关 键 词：低剖面 超材料 双S结构 法布里-珀罗谐振天线 

分 类 号：TN820[电子电信—信息与通信工程]