mm-wave mixer with Nb-Te-Nb Josephson junction

Journal Article · Wed Jul 01 00:00:00 EDT 1981 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.329326· OSTI ID:6344993

Nagata, K; Takayanagi, H; Uehara, S

A mm-wave Josephson integrated mixing circuit has been fabricated. In the circuit, an Nb-Te-Nb sandwich Josephson junction was used as the active element. Both RF and IF circuitries were made in the form of superconducting microstriplines using Si wafer as the dielectric layer. The signal and local powers were fed through tapered ridge waveguides, which were coupled into the stripline with small loss. The circuit was tested at 50-GHz signal frequency and the conversion efficiency was measured at -7.4 dB, for a junction with 0.4-mV I/sub C/R/sub N/ product. The measured efficiency showed good agreement with the theoretical prediction.

• Research Organization: Musashino Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Musashino-shi, Tokyo 180, Japan
• OSTI ID: 6344993
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Journal Issue: 7 Vol. 52:7; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPARATIVE EVALUATIONS
DATA
DIELECTRIC MATERIALS
EFFICIENCY
ELECTROMAGNETIC RADIATION
ELECTRONIC CIRCUITS
ELEMENTS
ENERGY LOSSES
FABRICATION
FREQUENCY CONVERTERS
INFORMATION
INTEGRATED CIRCUITS
JOSEPHSON JUNCTIONS
JUNCTIONS
LAYERS
LOSSES
MATERIALS
MATHEMATICAL MODELS
METALS
MICROELECTRONIC CIRCUITS
MICROWAVE RADIATION
NIOBIUM
NUMERICAL DATA
RADIATIONS
REFRACTORY METALS
SEMIMETALS
SILICON
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS
TELLURIUM
THEORETICAL DATA
TRANSITION ELEMENTS
WAVEGUIDES