摘要
提出了一种新型共面双波段单脉冲天线设计方法,分别给出了两个频段的驻波曲线和辐射方向图的测试结果.该天线在有限的空间内采用小型化边缘馈电的微带天线阵列与波导缝隙天线阵列复合,实现了两个频段的单脉冲天线共口径排布,天线厚度29mm,重量小于1kg.测试结果表明该新型双波段单脉冲天线能够在X、K两个特定频段下分别得到-19dB和-22dB的副瓣性能及38%和45%的辐射效率,实现了与单模相当的单脉冲方向图性能,满足了未来复合制导系统对高性能天线的需求.
A new dual-band co-plane microstrip/waveguide monopulse antenna is presented with its measured voltage standing wave ratio（VSWR）curve and radiation patterns.Based on the development of a new microstrip line array fed at the side and a novel compact slot patch antenna loaded with a pair of spirals,a dual-band co-plane monopulse antenna is realized with 29 mm height and less than 1kg weight.The measured side-lobe level is lower than-19 dB and-22 dB in X-and K-band and the measured efficiency reaches 38%and 45% respectively,which is in a similar level of single band monopulse antenna.The measured results confirm the validity of this design and this antenna can meet the need of dual mode compound guidance system in future.
出处
《电波科学学报》
EI
CSCD
北大核心
2016年第1期180-184,共5页
Chinese Journal of Radio Science
基金
国家自然科学基金(61201116)
关键词
共面
单脉冲
双波段
副瓣
co-plane
monopulse
dual-band
side-lobe
