HIGH ASPECT RATIO CYLINDRICAL PARABOLIC ANTENNA FOR MICROSATS.

DEFINITIVE CONTRACT won by TENDEG LLC · work in LOUISVILLE, CO

$300,000

Recipient	TENDEG LLC UEI SCRLNECNGAA1
Award ID	80NSSC23CA039
Award amount	$300,000
Award type	DEFINITIVE CONTRACT
Awarding agency	National Aeronautics and Space Administration — National Aeronautics and Space Administration
NAICS	541715 — RESEARCH AND DEVELOPMENT IN THE PHYSICAL, ENGINEERING, AND LIFE SCIENCES (EXCEPT NANOTECHNOLOGY AND BIOTECHNOLOGY)
PSC	AJ14
Start date	Jun 13, 2023
End date	Dec 12, 2023
Place of performance	LOUISVILLE, CO
Record updated	Jun 14, 2023

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THE CONTRACTOR SHALL PROVIDE ALL NECESSARY MATERIALS, LABOR, EQUIPMENT AND FACILITIES INCIDENTAL TO THE PERFORMANCE OF THIS REQUIREMENT IN ACCORDANCE WITH THE TERMS OF THE ORDER.

Department of Defense · $151,000,000,000 · Dec 29, 2025

THE NATIONAL ACADEMIES DECADAL STRATEGY AND NASA HAVE IDENTIFIED CRITICAL EARTH OBSERVATIONS INCLUDING SURFACE DEFORMATION AND CHANGE AND CLOUDS, CONVECTION AND PRECIPITATION. THESE OBSERVATIONS ARE WELL SUITED TO SYNTHETIC APERTURE RADAR INSTRUMENTS. THE MISSIONS SPAN OPERATING FREQUENCIES FROM L TO KA BAND. PRECISION MESH REFLECTORS ARE UNIQUELY SUITED TO PROVIDE LARGE FREQUENCY BANDWIDTH WHILE MAINTAINING SMALL PACKAGING FORMS WITH LOW MASS. TENDEG PROPOSES TO CREATE A CYLINDRICAL PARABOLIC REFLECTOR THAT CAN BE USED ACROSS MANY MISSIONS. THIS WILL INCLUDE THE ABILITY TO OPERATE AT FREQUENCIES UP TO 36 GHZ WHILE MAINTAINING THE ABILITY TO OPERATE AT FREQUENCIES DOWN TO L-BAND. THIS WILL ALLOW THE PROPOSED REFLECTOR TO OPERATE WITH CURRENT MULTI ARRAY FEEDS, OR SCANNING PHASED ARRAY FEEDS, OF DIFFERENT FREQUENCIES ON THE SAME VEHICLE. THIS IN TURN WILL ALLOW BUSES EQUIPPED WITH THIS REFLECTOR TO CARRY OUT SEVERAL OF THE DECADAL PROPOSED MISSIONS WHICH REQUIRE SAR TECHNOLOGIES. THE PROPOSED BASELINE DESIGN IS A 5:1 ASPECT RATIO APERTURE THAT WILL BE A 1 X 5M DEPLOYED EFFECTIVE APERTURE. THE PROPOSED DESIGN IS SCALABLE TO LARGER APERTURES AND CAN ACCOMMODATE A FIXED FEED WITH EITHER CENTER FED OR OFFSET FED APERTURES. THE ANTENNA HAS HIGH STRUCTURAL STABILITY WHICH RESULTS IN HIGH ON-ORBIT RESONANCE FREQUENCIES, PRECISION DEPLOYMENT REPEATABILITY, LOW DISTORTIONS DUE TO ON-ORBIT TEMPERATURES AND ABILITY TO ACCURATELY RF TEST IN 1G. THE PROPOSED DESIGN WOULD LEVERAGE TECHNOLOGIES ALREADY DEVELOPED BY TENDEG AS PART OF PREVIOUS SBIR ACTIVITIES.

National Aeronautics and Space Administration · $1,124,968 · Aug 14, 2019

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