基于传统的倒 F型天线, 设计了一种 M构型的新型小型化星载自动识别系统( AIS)天线。该天线具有尺寸小、质量轻、便于星体安装等优点, 天线外形尺寸仅为 324 mm×60 mm×263.2 mm。采用 CST MICROWAVE STUDIO电磁软件进行仿真设计, 在球面近场进行实物单机测试和辐射模型星(Radiating Mockup, RM)测试。天线的仿真和实测结果一致性好, 且天线方向图覆盖区域能够满足卫星 AIS系统的应用需求, 目前已在多颗小卫星上得到成功应用。

A novel satellite-based Automatic Identification System(AIS) antenna is proposed. The design is based on Inverted-F antenna, and M shape is utilized to achieve the miniaturization intention. The dimension of this AIS antenna is only 324 mm(L)×60 mm(W) ×263.2 mm(H). The CST MICROWAVE STUDIO is adopted for the optimized design, and performance test of the antenna element and radiating mockup is performed with the spherical near-field antenna measurements system. Simulation and measured results verify the performance of the proposed antenna, which can meet the application requirement of satellite AIS system.