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中国微波毫米波技术专家孙忠良因病治疗无效，周六于南京逝世，终年82岁。

孙忠良生前为中国工程院院士、东南大学教授，长期从事微波、毫米波技术研究和教育工作，其研究成果获得国家科技进步一等奖等多项奖励。

他同时培育大批优秀科技人才，为中国毫米技术的工程及国防应用作出贡献。

据知，毫米波频率为30GHz至300GHz，对应波长分别为10毫米到1毫米。在流动通信领域，通常把24GHz至100GHz称为5G毫米波。毫米波技术的研究对第5代移动通信技术具有重要意义。

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