We report the fabrication and characterization of an impedance matched Josephson parametric amplifier (IMPA). A multisection transmission line transformer (TLT) is utilized, which can reduce the input impedance and provide a wide impedance matched bandwidth. In addition, the whole IMPA device is fabricated on a LaAlO3 substrate with a dielectric constant of 23.4, much larger compared to the commonly used intrinsic silicon substrate, to provide larger grounded capacitance, making the fabrication of the multisection TLT more precise and reliable. The experimental results show that by adjusting the working point, the amplifier has a bandwidth of 580 MHz with a gain of more than 15 dB. The average input saturation power is about −115 dBm within the bandwidth. Additionally, its noise performance is close to the quantum-limited level.
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Impedance matched Josephson parametric amplifier with a multisection transmission line transformer
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10 March 2025
Research Article|
March 13 2025
Impedance matched Josephson parametric amplifier with a multisection transmission line transformer
Tianshi Zhou;
Tianshi Zhou
(Data curation, Investigation, Methodology, Writing – original draft)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
2
Purple Mountain Laboratories
, Nanjing 211111, China
3
Hefei National Laboratory
, Hefei 230088, China
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Wenqu Xu
;
Wenqu Xu
(Data curation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Quan Zuo;
Quan Zuo
(Data curation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Jiazheng Pan;
Jiazheng Pan
(Investigation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
2
Purple Mountain Laboratories
, Nanjing 211111, China
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Zishuo Li;
Zishuo Li
(Methodology)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Kaixuan Zhang;
Kaixuan Zhang
(Methodology)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Tingting Guo;
Tingting Guo
(Investigation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Yifan Sheng;
Yifan Sheng
(Investigation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Lingxiao Jing;
Lingxiao Jing
(Investigation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Huashi Ma;
Huashi Ma
(Methodology)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Mingyuan Yu;
Mingyuan Yu
(Methodology)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Shunhong Zhou;
Shunhong Zhou
(Methodology)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Binglin Li;
Binglin Li
(Methodology)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Shiyao Yang;
Shiyao Yang
(Investigation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Yongyang Yu;
Yongyang Yu
(Investigation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Jiyuan Zhu;
Jiyuan Zhu
(Investigation)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Junzhou Zhang;
Junzhou Zhang
(Methodology)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Jinpeng Li;
Jinpeng Li
(Methodology)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
2
Purple Mountain Laboratories
, Nanjing 211111, China
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Chunhai Cao;
Chunhai Cao
(Conceptualization, Writing – review & editing)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
3
Hefei National Laboratory
, Hefei 230088, China
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Guozhu Sun
;
Guozhu Sun
a)
(Conceptualization, Funding acquisition, Supervision, Writing – review & editing)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
2
Purple Mountain Laboratories
, Nanjing 211111, China
3
Hefei National Laboratory
, Hefei 230088, China
4
Shishan Laboratory, Suzhou Campus of Nanjing University
, Suzhou 215163, China
a)Author to whom correspondence should be addressed: [email protected]
Search for other works by this author on:
Peiheng Wu
Peiheng Wu
(Funding acquisition, Writing – review & editing)
1
Research Institute of Superconductor Electronics, School of Electronic Science and Engineering, Nanjing University
, Nanjing 210023, China
2
Purple Mountain Laboratories
, Nanjing 211111, China
3
Hefei National Laboratory
, Hefei 230088, China
Search for other works by this author on:
a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 126, 104002 (2025)
Article history
Received:
November 28 2024
Accepted:
February 25 2025
Citation
Tianshi Zhou, Wenqu Xu, Quan Zuo, Jiazheng Pan, Zishuo Li, Kaixuan Zhang, Tingting Guo, Yifan Sheng, Lingxiao Jing, Huashi Ma, Mingyuan Yu, Shunhong Zhou, Binglin Li, Shiyao Yang, Yongyang Yu, Jiyuan Zhu, Junzhou Zhang, Jinpeng Li, Chunhai Cao, Guozhu Sun, Peiheng Wu; Impedance matched Josephson parametric amplifier with a multisection transmission line transformer. Appl. Phys. Lett. 10 March 2025; 126 (10): 104002. https://doi.org/10.1063/5.0250918
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