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Phase-locking of Flux-Flow Oscillator by Harmonic Mixer Based on SIS Junction

Authors:
K. V. Kalashnikov, A. V. Khudchenko, P. N. Dmitriev, V. P. Koshelets, A. M. Baryshev
Abstract:
A new approach to phase-locking of a flux Flow Oscillator (FFO) in a superconducting integrated receiver has been proposed and experimentally verified. According to this novel concept, a superconductor-insulator-superconductor (SIS) junction is implemented both for down-conversion of the FFO frequency and for formation of the signal to phase-lock the FFO to the external reference by applying the Harmonic Mixer (HM) output directly to the FFO control line. In other words, we introduce a new element of superconductive electronics, which is based on the SIS junction and works as a cryogenic harmonic phase detector (CHPD). To realize efficient phase-locking of the FFO the HM output signal should be maximized. Value of this signal depends in a complicated way on the HM bias voltage, frequencies and powers of the local oscillator (LO) and the RF signals.
Categories:
Sources, Poster Session
Year:
2010
Session:
P9
Full-text:
Download a PDF of this paper.
Page Number(s):
464-467