摘要
在具有单脉冲跟踪能力的超宽带双槽深波纹喇叭的研究中,通过对双槽深波纹喇叭内的差模临界截止点和电压波腹点的研究和分析,提出了在双槽深波纹喇叭内耦合出差模信号的思路,并据此设计了在L频段具备单脉冲跟踪能力的L/S/C三频段共用双槽深波纹喇叭.通过理论计算、仿真和测试,该设计在L/S/C三频段具有良好匹配特性,辐射方向图对称,耦合出的L频段差模信号实现了单脉冲跟踪能力,天线性能达到了预定目标,验证了设计方法的有效性.
An ultra-wideband dual-slot monopulse tracking corrugated horn is studied in the paper.By analyzing the cutoff frequency and voltage maximum position of differential mode,a design strategy that coupling differential mode signal from the dual-slot corrugated horn is proposed.Based on this,an L/S/C-band dual-slot corrugated horn with Lband monopulse tracking ability is designed.It is demonstrated by the theory analysis,simulation and measured results that in L/S/C-band the horn has excellent matching performance and symmetrical radiation pattern.Besides,the L-band differential signal coupled from the corrugated horn is suitable for monopulse tracking task,satisfying all the requirements.The consistency between the measurements and simulations validate the present design methodology.
出处
《电波科学学报》
EI
CSCD
北大核心
2014年第3期502-508,共7页
Chinese Journal of Radio Science
关键词
差模耦合
双槽深
多频段
波纹喇叭
differential mode coupling
dual-slot
multi-band
corrugated horn
