High-Dynamic-Range Digital-RF Receiver with Rapidly Tunable Notch Filters for Cosite Interference Reduction

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-05-C-0037
Agency Tracking Number: N043-238-0107
Amount: $149,864.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2004
Solicitation Topic Code: N04-238
Solicitation Number: 2004.3
Small Business Information
175 Clearbrook Road, Elmsford, NY, 10523
DUNS: 103734869
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Alan Kadin
 Senior Scientist
 (914) 592-1190
Business Contact
 Edward Kulinski
Title: VP Finance & Administration
Phone: (914) 592-1190
Email: ekulinski@hypres.com
Research Institution
HYPRES proposes a two-pronged approach to reducing co-site interference: (1) Tunable notch filters to track one or more narrow-band jamming signals. (2) The use of a sensitive digital-RF receiver with high spur-free dynamic range (SFDR), which can tolerate high inteference levels without saturation. Together, these techniques can reduce the inteference to an acceptable level. We further propose to evaulate the feasibility of implementing both of these using superconducting components. These include: (1) Thin-film RF analog notch filters based on high-temperature superconductors (HTS), rapidly tunable by either micromechanical, optical, or thermal means. (2) A digital receiver built using ultrafast low-temperature superconducting (LTS) digital integrated circuits, with SFDR greater than 100 dB. Several possible receiver architectures will be investigated, including active cancelation and subranging. Both HTS and LTS components can be integrated together using a compact, multi-stage cryocooler, so that the entire system can operate without the need for liquid cryogens. This builds on prior and continuing DoD programs at HYPRES developing digital-RF receiver systems using superconducting components.

* Information listed above is at the time of submission. *

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