摘要
文章根据经典的哑铃状缺陷地结构设计出一种新型缺陷地结构,用于改善紧凑型微带阵列天线阵元间的互耦。在谐振频率为2.45GHz,阵元间距为1/10自由空间波长的天线阵阵元间引入该结构,采用Ansoft HFSS进行仿真,比较加入缺陷地结构前后天线的各项参数,结果表明该结构使得表征阵元间互耦的参数S12减小30dB以上,有效地改善了阵元间的互耦。
In this paper,a novel defected ground structure(DGS)is proposed based on classical dumbbellshaped DGS for the suppression of the mutual coupling between closely-spaced microstrip patch array antennas.The structure is etched on the ground between two one-tenth wavelength spaced patch antennas with a resonant frequency of 2.45 GHz.Through Ansoft HFSS simulation testing,the performance of the antenna arrays with and without DGS is compared and the result indicates that the DGS structure is effective in reducing mutual coupling with a reduction of the relevant parameter S12 by over 30 dB.
出处
《合肥工业大学学报(自然科学版)》
CAS
CSCD
北大核心
2015年第1期65-68,共4页
Journal of Hefei University of Technology:Natural Science
基金
安徽省高校省级自然科学研究重点资助项目(KJ2012Z316)
关键词
微带阵列天线
缺陷地结构
互耦
插入损耗
回波损耗
microstrip array antenna
defected ground structure(DGS)
mutual coupling
insertion loss
return loss