星载大功率固放组件中常用基板材料的出气及其微波特性研究  

Research of the outgassing and the influence on spaceborne high-power solid state power amplifier

作　　者：王杨婧 谢拥军[1,3,4] 夏维娟 苏璞[2] 武沛羽 WANG Yangjing;XIE Yongjun;XIA Weijuan;SU Pu;WU Peiyu(Beihang University,Beijing 100191,China;China Academy of Space Technology(Xi’an),Xi’an 710000,China;Beijing Key Laboratory of Microwave Sensing and Security Application,Beijing 100191,China;Research Institute of Beihang University in Shenzhen,Shenzhen 518057,China)

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191 [2]中国空间技术研究院西安分院,西安710000 [3]微波感知与安防应用北京市重点实验室,北京100191 [4]深圳北航新兴产业技术研究院,深圳518057

出　　处：《空间电子技术》2023年第3期78-83,共6页Space Electronic Technology

基　　金：空间微波技术重点实验室基金(编号:6142411032201);国家重点研发计划(编号:2020YFB1807400);国家自然科学基金(编号:61571022,61971022,61801376);重点实验室基金(编号:HTKJ2019KL504013,61424020305)。

摘　　要：随着星载大功率固放组件复杂度和输出功率的不断提高,因其内部材料出气而导致产品性能异常的情况时有发生。以大功率固放组件常用介质基板材料出气产生的水汽、氢气和氧气作为研究对象,研究了高功率微波信号作用下基板材料出气气体对大功率固放组件微波特性的影响;对出气的气体成分进行了定量测试试验验证,随后通过真空烘烤对基板进行除气处理;首次结合产品应用和环境试验进行了补充试验,通过增加长期和高温储存试验来模拟实际工况;试验结果表明除气措施可有效降低基板材料出气气体的含量,降幅超过79.1%;最后选取一组试验后的测试试验数据对基板除气的有效性进行了仿真验证,为星载大功率固放组件的进一步优化奠定了基础。With the continuous improvement of output power and the increasing complexity of the spaceborne high-power solid state power amplifier,the abnormal performance of products is often caused by the outgassing.In this paper,the water vapor,hydrogen and oxygen outgassinged from the dielectric substrate materials are taken as the research object.And the influences of the outgassing on the microwave characteristics are analysed.The gas composition was quantitatively tested and verified,and then the substrate was degassed by vacuum baking to reduce the content of the gas.For the first time,a supplementary test was carried out by combining product application and environmental test,and a long-term and high temperature storage test was added to simulate the actual condition.And the reduction of outgassing is at least 79.1%.Finally,the degassing effect is verified by simulation based on the test results.

关 键 词：星载 固放 大功率 材料出气 

分 类 号：TN704[电子电信—电路与系统] V443[航空宇航科学与技术—飞行器设计]