摘要
基于航空电子系统射频综合实验室的需求,应用圆锥喇叭天线的传输原理和宽频带波导的匹配特性,研制了一种宽带双极化四脊圆喇叭天线。对其工作原理、性能及电气结构进行了分析与设计,实际制作了一批宽带双极化四脊圆喇叭天线并对其进行了调试,电性能参数优良,实测结果与设计基本一致:此天线在C,X,Ku波段内具有大于3倍频程的宽带匹配特性,相当高的交叉极化隔离度(B>22 dB)和高的增益(10 dB^20 dB)。结果表明该方法是正确和有效的。
Based on the needs of the RF integrated laboratory in avionics system,one kind of broadband dual-polarized quadruple-ridged circular horn antenna was developed according to the transmission principle of conical horn antenna and the matching characteristics of broadband waveguide.Its working principle,performance and electrical structure were analyzed and designed.Through actual fabricating and testing of the antenna,excellent electric performance parameters were obtained.The measured results were basically consistent with the design.The antenna possessed more than 3 octave broadband matching characteristics in C,X,Ku band,also a very high cross-polarization isolation（B22 dB） and a high gain（10 dB-20 dB）.It is demonstrated that the proposed method is correct and effective.
出处
《信息与电子工程》
2011年第2期180-184,共5页
information and electronic engineering
关键词
宽频带匹配
四脊圆喇叭天线
隔离度
驻波
broadband matching
quadruple-ridged circular horn antenna
isolation
standing wave
