基于集成基片间隙波导的毫米波超宽带缝隙天线  

Millimeter Wave Ultra-wide Bandwidth Slot Antenna Based on Integrated Substrate GapWaveguide

作　　者：刘志俣 袁洪[1] 申东娅[1] Liu Zhiyu;Yuan Hong;Shen Dongya(Yunnan Provincial Engineering.Lab.of Cloud Wireless Access&Heterogeneous Network,School of Information,Yunnan University,Kunming,YN 650500,China)

机构地区：[1]云南大学,云南省无线接入与异构网络工程实验室,昆明650500

出　　处：《测控与通信》2020年第4期41-44,共4页

基　　金：国家自然科学基金(61561052,61561051,61861046)。

摘　　要：本文提出了1种基于集成基片间隙波导(ISGW)的超宽带缝隙天线。在基于ISGW的结构之上通过在微带线上进行阶梯阻抗转换来实现特性阻抗与负载阻抗的阻抗匹配,并在地板上刻蚀1个宽缝用于辐射电磁波,为了减小与微带线耦合,去掉了2个蘑菇结构。经过参数分析及模型优化,结果表明,在S11参数-10dB以下的频段为24.5~38 GHz,相对阻抗带宽为43.2%,增益达到10.5 dBi,群时延在0.5 ns以内。This paper puts forward a kind of ultra slot antenna based on Integrated Substrate GapWaveguide(ISGW).Based on the above ISGW structure through the microstrip line stepped impedance transformation to realize the characteristic impedance and the impedance of the load impedance matching,and etching on the floor a joint used for radiation of electromagnetic wave,In order to reduce the coupling with the microstrip line,two mushroom structures were removed.After optimization,parameter analysis and model results show that under the Sil parameter-10 db frequency of 24.5 GHz-38 GHz,relative impedance bandwidth is 43.2%,Antenna gain is 10.5 dBi,Group delay within 0.5ns.

关 键 词：ISGW 阻抗匹配 超宽带 微带缝隙天线 

分 类 号：TN8[电子电信—信息与通信工程]