High resolution millimeter reflector antennas
Millimeter wave reflector antennas, considering various system designs, performance, pointing capabilities, limitations and applications
SEARCH · Search NASA
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Millimeter wave reflector antennas, considering various system designs, performance, pointing capabilities, limitations and applications
Reflected ruby, laser pulses from Apollo 11 laser ranging retro-reflector /LRRR/ with telescope, measuring round trip travel time of light
Fabrication of curved reflector segments for solar mirror
Reflector surface distortions of 210 ft antenna and their effects on radio frequency performance
Geometric optics analysis of arbitrarily shaped dual reflector antennas
Forming mold for polishing and machining curved solar magnesium reflector with reinforcing ribs
Computer program for calculating radiation pattern of ATS 6 flexible rib-reinforced reflector
Cylindrical reflector for resolving wide angle light beam from telescope into narrow beam for spectroscopic analysis
Antenna array at focal plane of reflector with coupling network for beam switching
Solution of initial value problem in linear transport theory obtained by monoenergetic neutrons migrating in thin slab with infinite reflector and isotropic scattering
Development of reflector system for application to line-of-sight pointing and tracking telescopes
NASTRAN program used to calculate gravity load distortions in 64-m antenna reflectors
NASTRAN-GAP programs for analyzing antenna radiation patterns of reflectors distorted by gravity and thermal loads
Calculation of near fields of reflector antennas by geometrical theory of diffraction
Far field diffraction pattern of corner reflector for normally incident monochromatic light, considering polarization characteristics
A 1.83-m diameter furlable conical Gregorian antenna based on a novel spoke-supported ring-membrane concept has been successfully demonstrated. Mechanical measurements of the conical reflecting surface, as well as BE gain measurements at Ku-band, show an rms surface deviation from the proper conical surface of 0.3 mm and a repeatability after multiple furling-unfurling cycles of + or - 0.05 mm. Design features and performance characteristics of this antenna indicate that the spoke-supported ring-membrane concept is a promising approach for producing large, furlable, lightweight, conical reflectors for spacecraft high-gain antennas.