A compact design for the Josephson mixer: the lumped element circuit
arXiv:1503.08185 · doi:10.1063/1.4922188
Abstract
We present a compact and efficient design in terms of gain, bandwidth and dynamical range for the Josephson mixer, the superconducting circuit performing three-wave mixing at microwave frequencies. In an all lumped-element based circuit with galvanically coupled ports, we demonstrate non degenerate amplification for microwave signals over a bandwidth up to 50 MHz for a power gain of 20 dB. The quantum efficiency of the mixer is shown to be about 70 and its saturation power reaches dBm.
arXiv comment5 pages, 4 figures
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- Time-multiplexed amplification in a hybrid-less and coil-less Josephson parametric converter