NASA NTRS · 19920000443
Paraboloidal Reflector With Movable Subreflector
Abstract
Subreflector of 34-m-diameter paraboloidal radio-antenna reflector tilted and translated to compensate for gravitational distortions of antenna structure. Position and orientation of subreflector adjusted to focus with respect to phase center of radio-frequency feed horn and primary focus of computed paraboloid best fitting gravitationally distorted main paraboloidal reflector. Restores gain lost when antenna aimed at angle other than design optimum elevation.
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Katow, Masakazu S.. 1992-08-01. Paraboloidal Reflector With Movable Subreflector. https://ntrs.nasa.gov/citations/19920000443
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