Integrated High-T/sub c/ oscillator array and high resistance detector junction

Author

Edstam, J. ; Brorsson, G. ; Stepantsov, E.A. ; Olsson, H.K.

Author_Institution

Dept. of Phys., Chalmers Univ. of Technol., Goteborg, Sweden

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

3276

Lastpage

3279

Abstract

We have integrated an array of five High-T/sub c/ Josephson junction oscillators with a Josephson detector junction of high resistance, e.g. 25 /spl Omega/. High impedance detectors are suitable in integrated superconducting receivers. We find the output power to be sufficient to modulate the detector junction with large Shapiro steps in the frequency range 200-700 GHz. The oscillator junctions were dc-biased in parallel and integrated in an inductive high frequency coupling circuit to oscillate coherently in-phase. The high frequency coupling circuit is evaluated through its influence on the current-voltage characteristic of the Josephson junctions.<>

Keywords

Josephson effect; high-temperature superconductors; submillimetre wave detectors; superconducting microwave devices; 200 to 700 GHz; 25 ohm; Shapiro steps; current-voltage characteristic; high resistance detector junction; high-T/sub c/ Josephson junction oscillator array; inductive high frequency coupling circuit; integrated superconducting receivers; Artificial intelligence; Coupling circuits; Detectors; Frequency; Oscillators; Sensor arrays; Signal design; Signal detection; Tunable circuits and devices; Voltage;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403291

Filename

403291