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约瑟夫森双晶结混频器变频效率测量分析 被引量:1

Test and analysis of bicrystal Josephson junction mixer's conversion efficiency
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摘要 开展了基于高温超导双晶结混频器变频效率的研究.采用离子刻蚀法进行刻蚀,制备出集成天线的结,进行了3mm谐波混频的实验,测量分析了高温超导混频器的变频效率与本振信号功率、微波信号功率、谐波次数、偏置电流等参数之间的关系.为进一步提高高温超导混频器的变频效率提供了依据,同时为混频器最佳工作点的选取打下了基础. The research work on the conversion efficiency of high-temperature superconductivity bicrystal Josephson junction mixer is reported. Using ion etching, the junction integrated with antenna is prepared. Experiment on harmonic mixing at 3 mm waveband is carried out. The relationship between conversion efficiency and the parameters of local oscillation power, microwave signal power, harmonic order, bias electric current, etc., is tested and analyzed.
出处 《科学通报》 EI CAS CSCD 北大核心 2009年第13期1850-1854,共5页 Chinese Science Bulletin
基金 国家自然科学基金(批准号:10874074) 国家重点实验室基金(编号:9140C5306030806) 国家高技术研究发展计划(编号:2006AA03Z214) 国家重点基础研究发展计划(编号:2007CB310404)资助项目
关键词 约瑟夫森结 双晶结 谐波混频 变频效率 Josephson junction, bicrystal junction, harmonic mixing, conversion efficiency
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