NDLI: Large deployable antenna program. phase 1: technology assessment and mission architecture

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Large deployable antenna program. phase 1: technology assessment and mission architecture

Content Provider	NASA Technical Reports Server (NTRS)
Author	Stutzman, Warren L. Rogers, Craig A.
Copyright Year	1991
Description	The program was initiated to investigate the availability of critical large deployable antenna technologies which would enable microwave remote sensing missions from geostationary orbits as required for Mission to Planet Earth. Program goals for the large antenna were: 40-meter diameter, offset-fed paraboloid, and surface precision of 0.1 mm rms. Phase 1 goals were: to review the state-of-the-art for large, precise, wide-scanning radiometers up to 60 GHz; to assess critical technologies necessary for selected concepts; to develop mission architecture for these concepts; and to evaluate generic technologies to support the large deployable reflectors necessary for these missions. Selected results of the study show that deployable reflectors using furlable segments are limited by surface precision goals to 12 meters in diameter, current launch vehicles can place in geostationary only a 20-meter class antenna, and conceptual designs using stiff reflectors are possible with areal densities of 2.4 deg/sq m.
File Size	5102430
Page Count	90
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19920001818
Archival Resource Key	ark:/13960/t3518x48c
Language	English
Publisher Date	1991-10-01
Access Restriction	Open
Subject Keyword	Launch Vehicles And Space Vehicles Radiometers Microwave Antennas Remote Sensors Mission To Planet Earth Reflector Antennas Remote Sensing Launch Vehicles Antenna Design Microwave Imagery Technology Assessment Folding Structures Mission Planning Large Deployable Reflector Geosynchronous Orbits Parabolic Bodies Large Space Structures Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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