Wideband RF Digitizer with Integrated Filter

The ability to capture wide instantaneous bandwidth is essential for analysis of various signals-of-interest. Superconductor analog-to-digital converters (ADC) offer discriminating advantages in both bandwidth and fidelity due to very high sampling rates and quantum-accurate digitization based on counting of magnetic flux quanta. Multiple digital-RF receiver systems incorporating superconductor ADCs have been in operation for over two years in field-ready configurations at Government laboratories, and have demonstrated direct digitization of RF signals above 20 GHz. We propose to augment the superconductor ADC technology by integrating superconductor analog filters. We propose to design, build, and demonstrate a hardware prototype of a wideband receiver, incorporating the combination of analog filter and ADC using superconductor integrated circuit technology.