Full EM Design Method For HTS MMIC Josephson Mixers

We report the full electromagnetic (EM) design and simulation method, and applied it to develop a 34-GHz high-temperature superconducting (HTS) microwave monolithic integrated circuit Josephson mixer. The mixer is modeled in EM simulation software, high-frequency simulation structural simulator, wit...

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Bibliographic Details
Published inIEEE transactions on applied superconductivity Vol. 28; no. 4; pp. 1 - 5
Main Authors Ting Zhang, Xiang Gao, Jia Du, Guo, Yingjie Jay
Format Journal Article
LanguageEnglish
Published IEEE 01.06.2018
Subjects
EM design
High temperature superconducting (HTS)
High-temperature superconductors
Impedance
Integrated circuit modeling
Josephson mixer
Junctions
Mixers
MMIC
Ports (Computers)
Radio frequency
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Summary:We report the full electromagnetic (EM) design and simulation method, and applied it to develop a 34-GHz high-temperature superconducting (HTS) microwave monolithic integrated circuit Josephson mixer. The mixer is modeled in EM simulation software, high-frequency simulation structural simulator, with the junction area modeled as an excitation port with frequency-dependent impedance. Impedance matching between the junction and RF/IF ports is then optimized accordingly. Module design is carried out for the optimized HTS Josephson mixer, and the cavity resonance issue is investigated and eliminated. The HTS mixer module was experimentally developed and measured to verify the simulation. The measured frequency response of the conversion gain agrees with the simulation results of combined RF and IF transmission loss.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2018.2796541