Multi-Modulator Architecture for High Sensitivity High Dynamic Range Analog to Digital Converter (ADC)

Award Information
Agency:
Department of Defense
Branch:
Navy
Amount:
$69,993.00
Award Year:
2009
Program:
STTR
Phase:
Phase I
Contract:
N00014-09-M-0316
Agency Tracking Number:
N09A-027-0393
Solicitation Year:
2009
Solicitation Topic Code:
N09-T027
Solicitation Number:
2009.A
Small Business Information
HYPRES. Inc.
175 Clearbrook Road, Elmsford, NY, 10523
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
103734869
Principal Investigator
 Amol Inamdar
 Member of Technical Staff
 (914) 592-1190
 ainamdar@hypres.com
Business Contact
 Edward Kulinski
Title: Chief Financial Officer
Phone: (914) 592-1190
Email: ekulinski@hypres.com
Research Institution
 Stony Brook University
 Lydia Chabza
 Office of Sponsored Programs
Stony Brook, NY, 11794 3362
 (631) 632-9949
 Nonprofit college or university
Abstract
Higher receiver sensitivity enables detection of weaker signals, which translates into increased signal-to-noise ratio and increased coverage area. HYPRES, in collaboration with Stony Brook University, proposes to deliver high sensitivity over a wide frequency band using superconductor high-linearity analog-to-digital converter (ADC) technology. First, operating at 4 K, the ADC offers a much lower thermal noise floor. Second, direct digitization eliminates non-linear analog RF components which raise the effective noise floor. Finally, we propose a multi-modulator architecture that further increases signal-to-noise ratio. In Phase I, we will start with the low risk approach of designing, fabricating, and testing a high sensitivity input transformer to our proven phase-modulation-demodulation (PMD) ADC with a lower secondary inductance to reduce the noise floor. This approach will meet the required -90 dBm sensitivity for the 30-MHz HF band. Next, we will extend the same sensitivity performance over a wider (500 MHz) bandwidth by using multiple modulators and on-chip circuitry for digital summing and filtering circuitry. We will characterize the performance of the ADC, and its noise floor, by simulating the multi-modulator ADC using MATLAB Simulink, also including the model for the designed transformer.

* information listed above is at the time of submission.

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