Flux-flow type Josephson oscillator for millimeter and submillimeter wave region

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.332443· OSTI ID:6092594

Nagatsuma, T; Enpuku, K; Irie, F; Yoshida, K

An oscillator which utilizes the effect of the vortex motion in long Josephson tunnel junctions, i.e., flux flow, has been presented in millimeter and submillimeter wave region. An electromagnetic wave generated by the oscillator is detected with a small tunnel junction as a detector with a refined coupling configuration. Quantitative evaluation of the detected power showed that the detected power attained the value of 10/sup -6/ W in the frequency range between 100 and 400 GHz, which is far superior to previous results. Frequency and magnetic field dependences of the present system were also measured, which showed that the output power was able to be controlled by the dc magnetic field. The present oscillator will be promising as the local oscillator in the integrated Josephson receiver systems.

• Research Organization: Department of Electronics, Kyushu University, Fukuoka 812, Japan
• OSTI ID: 6092594
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 54:6; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONFIGURATION
CONTROL
COUPLING
CURRENTS
DIRECT CURRENT
ELECTRIC CURRENTS
ELECTRONIC EQUIPMENT
EQUIPMENT
FREQUENCY CONVERTERS
FREQUENCY DEPENDENCE
FREQUENCY RANGE
GHZ RANGE
GHZ RANGE 100-1000
HETERODYNE RECEIVERS
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
JUNCTIONS
MAGNETIC FLUX
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
OSCILLATORS
RADIATION DETECTORS
RADIO EQUIPMENT
SUPERCONDUCTING JUNCTIONS