一种机载全向天线结构优化设计  

Structure Optimization Design of an Airborne Omni-directional Antenna

作　　者：徐青山 王雪莹 杨雨田 XU Qingshan;WANG Xueying;YANG Yutian(Beijing Research Institute of Telemetry,Beijing 100076,China)

机构地区：[1]北京遥测技术研究所,北京100076

出　　处：《电子机械工程》2025年第1期11-14,共4页Electro-Mechanical Engineering

摘　　要：文中介绍了一种柱状机载全向天线的主要结构形式,为了解决天线罩法兰分层裂纹、印制板变形以及互换性差的问题,在保证天线电性能和力学性能的前提下,对天线整体结构进行了优化设计。提出了天线罩外加固定座分体式设计、增加PMI(聚甲基丙烯酰亚胺)泡沫填料、优化印制板固定方式等措施,实现了天线整体结构强度以及装配互换性的大幅度提高。最后对优化后的天线结构进行了仿真分析以及产品实物试验,验证了天线结构强度及其可靠性。该优化设计方案大幅提高了天线产品的可靠性,减少了因质量问题而产生的报废成本,同时为此类天线的设计提供了良好的参考价值。The main structural form of a cylindrical airborne omni-directional antenna is introduced in this paper.In order to solve the problems of cracking of the radome flange,deformation of the printed circuit board and the poor interchangeability,the overall antenna structure is optimized under the premise that the electrical and mechanical performances of the antenna are ensured.The design of radome-cover with a fixed base split type,polymethacylimide(PMI)foam packing and optimizing the fixing method of the printed circuit board are put forward.As a result,the structure strength and assembly interchangeability of the overall antenna have been greatly improved.Finally,the optimized antenna structure is simulated and tested to verify the structure strength and reliability of the antenna.This optimization design scheme greatly improves the reliability of the antenna products,reduces the cost of scrapped products due to quality problems and provides a good reference value for the design of this type of antenna.

关 键 词：天线结构 复合材料天线罩 薄柔性印制板 PMI泡沫 

分 类 号：TN82[电子电信—信息与通信工程]