Journal article
Optimization of the phase-locked flux-flow oscillator for the submm integrated receiver
The Superconducting Integrated Receiver (SIR) comprises in one chip a planar antenna integrated with an SIS mixer, a superconducting Flux Flow Oscillator (FFO) acting as Local Oscillator (LO) and a second SIS harmonic mixer (HM) for FFO phase locking. Free-running FFO linewidth well below 10 MHz is required to ensure phase-locked operation of an SIR.
Comprehensive experimental study of the Nb-AlOx-Nb FFO linewidth and other main parameters has been carried out in order to achieve this goal. Essential dependence of the FFO linewidth on its width and idle region dimension has been found. It makes possible an optimization of the FFO design and selection of the best FFO parameters for practical operation of the SIR.
| Language: | English |
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| Publisher: | IEEE |
| Year: | 2005 |
| Pages: | 964-967 |
| ISSN: | 15582515 , 10518223 and 23787074 |
| Types: | Journal article |
| DOI: | 10.1109/TASC.2005.850140 |
| ORCIDs: | Mygind, Jesper |
Design optimization Frequency Josephson junctions Local oscillators Nb-AlO-Nb Phase locked loops Physics Planar arrays SIS harmonic mixer SIS mixer Spectroscopy Superconducting devices Superconducting integrated circuits aluminium compounds circuit optimisation flux-flow oscillator niobium optimization phase locked oscillators phase-locked oscillator phase-locked oscillators planar antenna submillimeter wave integrated circuits submillimetre wave receivers submm integrated receiver superconducting devices superconducting flux flow oscillator superconducting integrated circuits superconducting integrated receiver superconducting processor circuits superconductor-insulator-superconductor mixers
