双波段微带/波导单脉冲天线的工程实现方法  

Engineered Realization of a New Dual-Band Microstrip/Waveguide Monopulse Antenna

作　　者：姚凤薇[1] YAO Feng-wei(School of Electronic Information Engineering, Shanghai DianJi University, Shanghai 201306, China)

机构地区：[1]上海电机学院电子信息学院,上海201306

出　　处：《微波学报》2016年第5期32-34,38,共4页Journal of Microwaves

基　　金：国家自然科学基金(61201116)

摘　　要：在有限的空间内采用小型化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。通过在微带板背后添加金属带线的方法,解决了微带板与金属波导间不完全贴合带来的口面相位不一致的工程问题,兼顾了两个频段的单脉冲性能。经过仿真与实验的双重优化,加工了样机,测试结果表明该微带/波导复合天线能够在X、K两个特定频段实现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 low profile dual-band co-plane microstrip/waveguide monopulse antenna is designed,manufactured and tested,which is based on the development of a new microstrip line array fed at the side. A engineered problem is solved through adding the mental stripline below the microstrip feeding line,which is brought by the air space between the substrate and the surface of waveguide slot antenna. The good results of side-lobe level and radiation efficiency are presented,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.

关 键 词：共面 单脉冲天线 双波段 工程实现 

分 类 号：TN822[电子电信—信息与通信工程]