NDLI: Self-inflatable/self-rigidizable reflectarray antenna

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Self-inflatable/self-rigidizable reflectarray antenna

Content Provider	NASA Technical Reports Server (NTRS)
Author	Lou, Michael Huang, John Fang, Houfei
Copyright Year	2004
Description	A report describes recent progress in a continuing effort to develop large reflectarray antennas to be deployed in space. Major underlying concepts were reported in two prior NASA Tech Briefs articles: Inflatable Reflectarray Antennas (NPO- 20433), Vol. 23, No. 10 (October 1999), page 50 and Tape-Spring Reinforcements for Inflatable Structural Tubes (NPO-20615), Vol. 24, No. 7 (July 2000), page 58. To recapitulate: An antenna as proposed would include a reflectarray membrane stretched flat on a frame of multiple tubular booms that would be deployed by inflation. The instant report discusses design concepts and relevant basic mechanical principles. Among the concepts are alternative configurations of booms for holding the reflectarray membrane and its radio-frequency feed horn and the use of catenaries and constant-force springs to stretch the reflectarray membrane on the frame at the required tension. Some emphasis is placed on the need to keep the deployed frame rigid without depending on maintenance of inflation in the presence of impinging micrometeors that could cause leaks: for this purpose, the booms could be made as spring-tape-reinforced aluminum laminate tubes like those described in the second-mentioned prior article.
File Size	83459
Page Count	1
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110016558
Archival Resource Key	ark:/13960/t6h18023t
Language	English
Publisher Date	2004-01-01
Access Restriction	Open
Subject Keyword	Man/system Technology And Life Support Radio Frequencies Membranes Catenaries Antenna Design Impingement Micrometeoroids Reflector Antennas Inflatable Structures Pipes Tubes Rigidity Laminates Antenna Arrays 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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