Magnetic flux controlled Josephson array oscillators

Author

Crankshaw, Donald S. ; Trías, Enrique ; Orlando, Terry P.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

1223

Lastpage

1226

Abstract

One-dimensional parallel arrays of Josephson junctions have the ability to perform as oscillators tunable by magnetic flux. We have designed and tested an array impedance matched to a detector junction load. The amplitude and frequency of the array are controlled by the independent variables of magnetic field and current bias. We report on the array´s characteristics and compare them to the results predicted by nonlinear simulations and a linear circuit model. This confirms the accuracy of the circuit model, both for impedance matching and in describing the dynamics of the array, even in a multiple-frequency regime

Keywords

circuit simulation; circuit tuning; impedance matching; magnetic flux; millimetre wave oscillators; superconducting arrays; superconducting junction devices; superconducting microwave devices; 50 GHz; Josephson junctions; array amplitude; array frequency; array impedance matching; current bias; detector junction load; linear circuit model; magnetic field; magnetic flux controlled Josephson array oscillators; multiple-frequency regime; nonlinear simulations; one-dimensional parallel arrays; tunable oscillators; Circuit testing; Detectors; Impedance; Josephson junctions; Magnetic flux; Magnetic variables control; Oscillators; Predictive models; Sensor arrays; Tunable circuits and devices;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.919570

Filename

919570