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Bandpass, Delta-Sigma, Analog-to-Digital Converter (BP Delta-Sigma ADC) for…

Award Information

Department of Defense
Award ID:
Program Year/Program:
2002 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
1069 Elkton Drive Colorado Springs, CO 80907
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2002
Title: Bandpass, Delta-Sigma, Analog-to-Digital Converter (BP Delta-Sigma ADC) for advanced Digital Array Radar (DAR) (9611)
Agency / Branch: DOD / NAVY
Contract: N00178-02-C-3069
Award Amount: $69,976.00


Q-DOT proposes to develop a BP delta-sigma ADC in 120 GHz SiGe for use in advanced DAR. IBM's 7HP SiGe BiCMOS process enables the integration of a complete ADC modulator plus support circuitry (e.g., laser diode driver) on a single small, inexpensivesilicon chip. It's small size, low power dissipation, and low cost permit this high-performance ADC to be included in the T/R module for each array element! Its single-bit digital output supports data transmission via COTS optical fiber components.Together with a single-bit delta-sigma DAC (under development separately by Q-DOT), the entire signal interface to the T/R module comprises two, single-bit streams of digital data. The ADC (and DAC) combined with wide bandwidth, one-bit delta-sigma,true-time-delay, digital beamforming will yield an innovative, high-performance, low-cost, multi-function DAR. The BP delta-sigma ADC will be conceptually designed in Phase I to assess its performance. It will be designed and fabricated in Phase II andintegrated into a demonstration system in Phase III. The BP delta-sigma ADC technology will enhance the capability of radar for commercial aviation on aircraft and on the ground. It will enable Direct Broadcast Satellite (DBS) reception on moving vehicles(e.g., automobiles). Single ADCs will enable highly versatile, software-configured receivers for communications hand-sets and base stations.

Principal Investigator:

Michael E. Harrell
Mgr RF & Optical Systems

Business Contact:

Thomas E. Linnenbrink
President & Technical Dir
Small Business Information at Submission:

Q-Dot, Inc.
1069 Elkton Drive Colorado Springs, CO 80907

EIN/Tax ID: 362930703
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No