宽频带技术天线的设计与研究  

Study and Design of Broadband Antenna

作　　者：廖昆明[1,2] 吴毅强[1] 胡少文[1] 陈力[2] 

机构地区：[1]南昌大学电子信息工程系 [2]中国人民解放军91911部队

出　　处：《压电与声光》2013年第2期305-308,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(61062009)

摘　　要：设计了一款共面波导馈电的新型超宽带的平面天线,该天线印刷在介电常数为2.1的聚四氟乙烯覆铜介质基板上,尺寸为30mm×30mm×1.6mm。采用附加无源贴片及在辐射贴片上开槽等技术来实现超频带天线设计,利用仿真软件HFSS对天线参数进行优化仿真。实现了天线频带宽度为3.2～11.7GHz(S11<-10dB),相对带宽达到114%。按照优化尺寸对天线进行加工,实测数据与仿真值基本吻合。结果表明,该天线不仅可实现超宽频带,且结构简单,尺寸小,易集成。A novel CPW-fed ultra-wideband planar antenna was designed. The antenna was printed on a copper- cladding polytetrafluoroethylene substrate with relative dielectric constant of 2.1 and the size was 30 min× 30 mm× 1.6 ram. The ultra-wideband antenna design was realized by using the additional passive patch and the radiating patch slotting technology. The antenna parameters were optimized and simulated by using the simulation software HFSS. The obtained bandwidth of antenna was The bandwidth （ return loss≤-10 dB） 3.2-11. 7 GHz （S11 〈 -10 dB） and a relative bandwidth of 114%. The antenna was fabricated according to the optimized size and the measured results were consistent with the simulated results. The results showed that the proposed antenna can not only realize the ultra-wideband, but also simple structure, small size, ease of integration.

关 键 词：超宽带天线 共面波导 天线设计 HFSS仿真 

分 类 号：TN92[电子电信—通信与信息系统]