Title :
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
fDate :
3/1/1991 12:00:00 AM
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/AlOx/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-AlOx-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;
Journal_Title :
Magnetics, IEEE Transactions on
