Simulation and measurement of millimeter-wave radiation from Josephson junction array

作     者：Xin Zhang Sheng-Hui Zhao Li-Tian Wang Jian Xing Sheng-Fang Zhang Xue-Lian Liang Ze He Pei Wang Xin-Jie Zhao Ming He Lu Ji 张鑫;赵生辉;王荔田;邢建;张胜芳;梁雪连;何泽;王培;赵新杰;何明;季鲁

作者机构：College of Electronic Information and Optical EngineeringNankai UniversityTianjin 300350China Beijing Institute of Radio MeasurementBeijing 100854China Key Laboratory of Photoelectronic Thin Film Devices and Technology of TianjinTianjin 300350China Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network TechnologyTianjin 300350China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2019年第28卷第6期

页      面：87-90页

核心收录：

学科分类：080705[工学-制冷及低温工程] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0807[工学-动力工程及工程热物理] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.51002081) the Fundamental Research Funds for the Central Universities,China the China Manned Space Advance Research Program,China(Grant No.030201) the Research Program of Application Foundation and Advanced Technology of Tianjin,China(Grant No.15JCQNJC01300) 

主　　题：high temperature superconducting(HTS) Josephson junction array radiation circuit model simulation 

摘      要：We report the circuit simulations and experiments of millimeter-wave radiation from a high temperature superconducting(HTS) bicrystal Josephson junction(BJJ) array. To study the effects of junction characteristic parameters on radiation properties, new radiation circuit models are proposed in this paper. The series resistively and capacitively shunted junction(RCSJ) models are packaged into a Josephson junction array(JJA) model in the simulation. The current-voltage characteristics(IVCs) curve and radiation peaks are simulated and analyzed by circuit models, which are also observed from the experiment at liquid nitrogen temperature. The experimental radiation linewidth and power are in good agreement with simulated results. The presented circuit models clearly demonstrate that the inconsistency of the JJA will cause a broad linewidth and a low detected power. The junction radiation properties are also investigated at the optimal situation by circuit simulation. The results further confirm that the consistent JJA characteristic parameters can successfully narrow the radiation linewidth and increase the power of junction radiation.