THERMALLY COOLED SPACECRAFT LOW NOISE AMPLIFIER DESIGN STUDY

Award Information
Agency:
Department of Defense
Branch:
Air Force
Amount:
$375,000.00
Award Year:
1987
Program:
SBIR
Phase:
Phase II
Contract:
N/A
Agency Tracking Number:
4089
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Lnr Communications Inc.
180 Marcus Blvd, Hauppauge, NY, 11788
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 H Degruyl
 (516) 273-7111
Business Contact
Phone: () -
Research Institution
N/A
Abstract
A NEED EXISTS FOR SPACE QUALIFIED EHF LOW NOISE RECEIVER FRONT-ENDS OPERATING AT FREQUENCIES OF 44 GHZ AND UP. RECENT ADVANCES IN THE AREA OF HEMT DEVICE TECHNOLOGY MAKE IT POSSIBLE TO DEVELOP A SPACE QUALIFIABLE LOW NOISE AMPLIFIER WITH GAIN AND NOISE FIGURE PERFORMANCE APPROACHING THAT PREVIOUSLY AVAILABLE ONLY WITH PARAMETRIC AMPLIFIERS. TO ACHIEVE THESE NOISE PERFORMANCE LEVELS IT IS HOWEVER NECESSARY TO COOL THE HEMT DEVICE THEREBY REDUCING ITS THERMAL NOISE CONTRIBUTION. ACCORDINGLY, THE PROPOSED PHASE I PROGRAM ENTAILS THE PERFORMANCE OF A DESIGN STUDY TRADEOFF ANALYSIS CULMINATING IN THE GENERATION OF A PREFERRED DESIGN APPROACH FOR A SIMPLE, LIGHTWEIGHT, LOW COST HEMT LNA AT 44 GHZ WITH NOISE FIGURE AND GAIN OF 3-4 DB AND 10-15 DB RESPECTIVELY. ESPECIALLY THE STUDY WILL CONCENTRATE ON FIVE TECHNOLOGICAL AREAS TRADING OFF ELECTRICAL, THERMAL AND MECHANICAL DESIGN PRINCIPLES TO ACHIEVE MAXIMUM NOISE PERFORMANCE. AREAS TO BE INVESTIGATED ARE: 1) HEMT DEVICE TECHNOLOGY STATUS, 2) ACTIVE COOLING METHODS, 3) RF CIRCUIT DESIGN, 4) THERMAL TRANSFER/MECHANICAL STRUCTURE AND 5) SPACECRAFT INTERFACE. THE COOLED LNA DESIGN CONCEPTS, SO GENERATED, WILL ALTHOUGH FOCUSED AT 44 GHZ BE DIRECTLY TRANSFERABLE TO OTHER EHF FREQUENCIES OF OPERATION.

* information listed above is at the time of submission.

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