Josephson soliton oscillator arrays for SIS mixers

Author

Davidson, A. ; Gronbech-Jensen, N. ; Pedersen, N.F.

Author_Institution

IBM Thomas J Watson Res. Center, Yorktown Heights, NY, USA

Volume

27

Issue

2

fYear

1991

fDate

3/1/1991 12:00:00 AM

Firstpage

3347

Lastpage

3350

Abstract

Experiments on Josephson soliton oscillators phase locked to cavity modes of a coplanar waveguide resonator are discussed. The junctions were made using a trilayer Nb/AlO_x/Nb structure with a current density of about 1000 A/cm². Strong coupling between the junctions and the cavity was observed at 34 and 100 GHz. Subharmonic structure on the current-voltage characteristics indicate weaker coupling up to 300 GHz. These results are important for designing integrated soliton local oscillators for superconductor-insulator-superconductor (SIS) mixers in the millimeter band

Keywords

Josephson effect; microwave oscillators; mixers (circuits); solid-state microwave circuits; solitons; superconducting junction devices; 100 GHz; 34 GHz; Josephson soliton oscillators; Nb-AlO_x-Nb; SIS mixers; cavity modes; coplanar waveguide resonator; current density; current-voltage characteristics; local oscillators; mm waves; superconductor-insulator-superconductor; Coplanar waveguides; Current density; Electrodes; Frequency; Geometry; Josephson junctions; Laser mode locking; Local oscillators; Niobium; Solitons;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.133929

Filename

133929