Wideband RF Digitizer with Integrated Filters
Navy SBIR FY2014.2


Sol No.: Navy SBIR FY2014.2
Topic No.: N142-118
Topic Title: Wideband RF Digitizer with Integrated Filters
Proposal No.: N142-118-0625
Firm: HYPRES. Inc.
175 Clearbrook Road
Elmsford, New York 10523-1109
Contact: Deepnarayan Gupta
Phone: (914) 592-1190
Web Site: www.hypres.com
Abstract: 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 band-reject filters. Our prior expertise will allow us to not only design, but to build, and demonstrate a hardware prototype of the key element of the proposed wideband receiver, the combination of tunable analog filter and ADC, during Phase I. In Phase II, we will increase the complexity of the scalable architecture developed during Phase I to build, demonstrate and deliver a wideband RF digitizer with multiple integrated tunable filters for operation and testing to a designated Government facility.
Benefits: The proposed digital-RF receiver solution to naval RF systems will enhance performance and reduce operational cost. By digitizing wide bands with high dynamic range and sensitivity directly at RF, these receiver systems will enable superior dominance of the RF spectrum. They will help detect and analyze threat signals that are frequency agile and utilize disjoint spectral segments. In addition, these digital-RF receivers maximize spectrum utilization, enable dynamic bandwidth allocation, support diverse transmission modalities, and better tolerate co-located high-power transmitters used for surveillance and electronic attack. The resultant wideband receiver will be incorporated in a future military transceiver/receiver system.

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