Deployable reflector antenna performance optimization using automated surface correction and array-feed compensation
Lyle C. Schroeder, M. C. Bailey, John L. Mitchell, United States. National Aeronautics and Space Administration. Scientific and Technical Information Program
National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1992 - 70 pages
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10-dB increments 15-meter hoop-column antenna 4/19/90 Surface Compensation 7-element array feed 7-element feed actuator system angular region antenna gain antenna performance aperture field best-fit paraboloid best-fit plane calculations Centroid CM CM CM CN CN CN Coefficients at 12 column computer-controlled adjustment configuration contours in 10-dB control cord adjustments control cord length Control station dB deg Element deg Element dB distorted reflector Element dB deg Excitation Coefficients false color plot feed array hoop cord Hoop GOl G02 Hoop joint inch justment Langley Research Center Left quartz Right measured surface ments mesh metric camera data metric camera measurements NASA Phase pillow targets quadrant quartz Left quartz quartz Right quartz radiation characteristics Radiation pattern contours Reflector Antenna reflector with 7-element Right quartz Left rms deviation rms surface side lobes surface adjustment model Surface Compensation Amplitude surface distortions surface errors surface smoothness Table tenna test program