Generators of the auxiliary signals based on the Josephson junctions
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2014, Vol 0, Issue 57
Abstract
Introduction and problem statement. Generators based on the Josephson junctions are advisable to use to ensure the generation of signals in the wavelength range from infrared to millimeter. It is necessary to build a dependence of the phase difference of the wave functions superconductor Josephson junctions from the parameters of the equivalent circuit of the resistive shunted tunnel junction. Solution of the problem. An analytical expression for calculating the dependence of the instantaneous voltage values from the parameters of the equivalent circuit resistive shunted Josephson junction is obtained. The dependence of the oscillation period from the parameters of the equivalent circuit elements is researched and a comparison of its values with the period of the output voltage of the generator based on three Josephson junctions is carried out. Conclusions. It is shown that the synchronization leads to decrement in the line width generation and increment the output voltage. Comparison of theoretical calculations and computer modeling shows that the differences do not exceed 25% and therefore they can be used for approximate calculations.
Authors and Affiliations
V. Kychak, M. Huz, A. Verheliuk
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