中国空间科学技术（中英文）2025，Vol.45Issue(1)：124-134,11.DOI:10.16708/j.cnki.1000-758X.2025.0012
航天微波通信中的无源互调问题及其关键技术
Passive intermodulation and its key technology in space microwave communication
摘要
Abstract
Passive intermodulation(PIM)is a common interference of high power multi-channel microwave communication systems.PIM has serious harmful impact on space microwave communication with shared transceiver antenna,high transmitting power and high receiving sensitivity.PIM will widely exist in the space communication for a long time.Effective solving of PIM problems is the prerequisite for successful development and safe operation in-orbit of space communication payload.The PIM problem under ultra-high transmitting and receiving power ratio conditions will be more complicated in China's next generation of space communication application,and PIM control has become an important key technology in research and development of space engineering.In this paper,the characteristics and research status of PIM problems are summarized from the aspects of mechanism,analysis and prediction,detection and localization,and suppression technology,and the key technology to solve PIM problem is discussed.Furthermore,the focus of PIM research and the development trend of key technologies are deeply analyzed,combining with the background of space application,which provides some references for the PIM research and technology application of space engineering.关键词
微波通信/无源互调(PIM)/非线性干扰/微波部件/低PIM技术Key words
microware communication/passive intermodulation(PIM)/nonlinear interference/microwave components/low PIM technology分类
信息技术与安全科学引用本文复制引用
陈翔,王小丽,孙冬全,双龙龙,胡天存,崔万照,LEI Wang..航天微波通信中的无源互调问题及其关键技术[J].中国空间科学技术（中英文）,2025,45(1):124-134,11.基金项目
国家自然科学基金青年基金(61901359) （61901359）
