Title :
High-frequency oscillators using phase-locked arrays of Josephson junctions
Author :
Benz, S.P. ; Booi, P.A.A.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
We present a basic description of Josephson junctions and discuss their use as GHz and THz oscillators. The resistively shunted junction model is used to calculate the available power, linewidth, and operating frequency of the oscillators. We discuss how phase-locked arrays of junctions are used to achieve higher power and narrower linewidth. Two experimental examples of phase-locked emission are shown: one from on-chip detection circuits at 150 GHz and one detected off-chip showing a 13-kHz linewidth at 88.8 GHz.<>
Keywords :
Josephson effect; phase locked oscillators; submillimetre wave oscillators; superconducting junction devices; superconducting microwave devices; 150 GHz; 88.8 GHz; GHz oscillators; Josephson junctions; THz oscillators; detected off-chip; high-frequency oscillators; linewidth; narrower linewidth; on-chip detection circuits; operating frequency; phase-locked arrays; phase-locked emission; power; resistively shunted junction model; submillimeter range; Acoustic transducers; Circuits; Ferroelectric materials; High temperature superconductors; Josephson junctions; Microwave oscillators; Optical signal processing; Phased arrays; Ultrasonic transducers; Ultrasonics, ferroelectrics, and frequency control;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
