Versatile microwave-integrated-circuit holder for thin-film superconducting devices

Abstract

The design, operation and details of construction of a fully shielded microwave-integrated-circuit holder suitable for use with thin-film superconducting microstrip circuitry including couplers, filters, impedance transformers and devices such as Josephson junctions are described. Several simple microwave coupling schemes for use with Josephson junction 2e/h frequency-to-voltage transducers illustrate the flexibility of the microstrip approach for coupling to thin-film Josephson junctions and semiconductor devices at cryogenic temperatures.