Noise figure measurement of high temperature superconducting bi-crystal josephson junction THz mixers

Author

An, D.Y. ; Xu, W.W. ; Hua, T. ; Li, D.C. ; Yu, M. ; Chen, J. ; Wu, P.H.

Author_Institution

Sch. of Electron. Sci. & Eng., Univ. of Nanjing Res. Inst. of Supercond. Electron., Nanjing, China

fYear

2012

fDate

23-28 Sept. 2012

Firstpage

1

Lastpage

2

Abstract

Using the Y-factor measurement method, we estimated the noise figure (NF) of the high temperature superconducting bi-crystal Josephson junction mixer. The experiment was based on small pulse tube refrigerator, working at 60 K. We tested and analysed the dependence of bias voltage and local oscillation signal power with the noise figure.

Keywords

Josephson effect; barium compounds; high-temperature superconductors; magnesium compounds; noise measurement; oscillations; superconducting mixers; yttrium compounds; V-factor measurement method; YBCO-MgO; bias voltage; high temperature superconducting bicrystal Josephson junction terahertz mixers; local oscillation signal power; noise figure measurement; pulse tube refrigerator; temperature 60 K; Harmonic analysis; High temperature superconductors; Josephson junctions; Junctions; Mixers; Noise measurement; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on

Conference_Location

Wollongong, NSW

ISSN

2162-2027

Print_ISBN

978-1-4673-1598-2

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/IRMMW-THz.2012.6380129

Filename

6380129