Improvement of the Effelsberg 100 meter telescope based on holographic reflector surface measurement

Details Improvement of the Effelsberg 100 meter telescope based on holographic reflector surface measurement Improvement of the Effelsberg 100 meter telescope based on holographic reflector surface measurement

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...167..390g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 167, Oct. 1986, p. 390-394.

Astronomy and Astrophysics

Astrophysics

8

Microwave Holography, Parabolic Reflectors, Radio Telescopes, Surface Properties, Accuracy, Antenna Radiation Patterns, Radio Antennas, Reflector Antennas, Synchronous Satellites

Scientific paper

Microwave holography was applied to measure the surface of the 100 meter telescope of the MPIfR. An array of 195×195 samples of the complex antenna pattern was obtained using a geostationary satellite beacon as the source, allowing the image of the dish to be formed with a resolution of 0.56 m. As a result of this measurement the adjustment of the inner 60 m portion of the reflector was made. Subsequent gain tests confirmed the rms deviation now to be 0.4 mm.

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