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Two-junction tuning circuits for submillimeter SIS mixers
IEEE transactions on microwave theory and techniques
The capacitance of superconducting tunnel junctions can seriously degrade the performance of quasiparticle (SIS) mixers operating in the submillimeter band, so it is essential to provide a circuit for tuning out this capacitance at the operating frequency. In this article, we present two new tuning circuits for SIS mixers which use a pair of SIS junctions connected by an inductance. Compared to previously proposed tuning circuits, ours have a broader bandwidth, are easier to scale to higherdoi:10.1109/22.285084 fatcat:xvrjxsmejrdwvgtrmadg7vrmfm