摘要
介绍了以六单元圆形阵列天线作为照射器的超宽频带双圆极化单脉冲抛物面天线的工作机理,并给出了通过数字移相器和耦合器将宽频带的和差两个通道变成单通道的途径。成功研制了一套超宽频带单通道单脉冲天线系统,天线系统由大、小两个抛物面天线组成,小天线置于大天线的边缘。进行了试验研究,给出了和差方向图的测试结果。该天线系统具有同时左右旋圆极化、十二倍频程自跟踪、单通道、馈源体积小等特点。
Mechanism of a ultra broadband auto tracking monopulse reflector antenna illuminated by a six elements circular antenna array was studied. The approach of converting two channels monopulse signal to single channel monopulse（SCM） by digital phase shifter and coupler was described. An ultra broadband monopulse antenna was designed. The antenna comprised of two reflectors, the smaller reflector was installed at the edge of the larger reflector. Experiment study was carried out; sum and difference patterns of the antenna were given. The system has features of dual circular polarizations, L/S/C/X bands auto tracking, SCM, and small feed size.
出处
《电波科学学报》
EI
CSCD
北大核心
2009年第3期427-431,共5页
Chinese Journal of Radio Science
