A high-temperature superconducting monolithic microwave integrated Josephson down-converter with high conversion efficiency

Publication Type:
Journal Article
Citation:
Applied Physics Letters, 2013, 102 (21)
Issue Date:
2013-06-24
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A compact high-T c superconducting monolithic microwave integrated circuit Josephson down-converter is presented. The circuit consists of a single Josephson junction mixer, a bandpass filter, a lowpass filter, and a resonator for local oscillator fabricated on a single 10 mm × 20 mm chip of YBa 2 Cu 3 O 7-x film on MgO substrate. The down-converter demonstrates superior performance in terms of conversion efficiency, dynamic range, linearity, and low local oscillator power with stable operation from 20 to 77 K. A maximum conversion gain of -4.7 dB was measured at 20 K and -12.8 dB at 70 K. © 2013 Crown.
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