Title :
Microwave antenna holography
Author :
Rochblatt, David J. ; Seidel, Boris L.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
6/1/1992 12:00:00 AM
Abstract :
The application of the holography technique to the newly constructed NASA/JPL Deep Space Network (DSN) 34-m beam-waveguide antenna, resulting in 4.1-dB performance improvement at 32 GHz by reducing the main reflector RMS surface error at 0.43 mm, is described. The improved antenna performance was verified by additional holographic measurements and efficiency measurements at X-band (8.45 GHz). Microwave holography has been demonstrated to be a required tool for achieving antenna aperture efficiency of 52% at Ka-band (32 GHz) and is probably necessary for maintaining an operational DSN Ka -band ground antenna capability
Keywords :
holography; reflector antennas; waveguide antennas; 32 GHz; 34 m; 8.45 GHz; Ka-band; NASA/JPL Deep Space Network; X-band; antenna aperture efficiency; beam-waveguide antenna; efficiency measurements; ground antenna capability; holography technique; reflector RMS surface error; Antenna measurements; Antenna radiation patterns; Aperture antennas; Decision support systems; Fourier transforms; Holography; Microwave antennas; Reflector antennas; Space technology; Testing;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
