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Low-noise parametric amplifiers tunable over one full octave

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1 Author(s)

Various possible ways of tuning low noise coolable parametric amplifiers through a full octave without adjusting the pump frequency are analyzed. Based upon this analysis, a novel and simple method is proposed and practically verified. In agreement with the theory, noise temperatures between 100°K (at 4 GHz) and 240°K (at 8 GHz) were achieved in a balance C-band amplifier.

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Solid-State Circuits, IEEE Journal of  (Volume:7 ,  Issue: 1 )