Suppression of the negative lobe of the correlation pattern of a Mills cross antenna

Details Suppression of the negative lobe of the correlation pattern of a Mills cross antenna Suppression of the negative lobe of the correlation pattern of a Mills cross antenna

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989raf....32.1433s&link_type=abstract

Radiofizika (ISSN 0021-3462), vol. 32, Nov. 1989, p. 1433-1435. In Russian.

Computer Science

Antennas, Brightness Temperature, Correlation, Sidelobe Reduction, Angular Distribution, Angular Resolution, Earth Surface, Surface Temperature

Scientific paper

The use of a Mills cross antenna of correlation type to study the distribution of the brightness temperature on the earth's surface is examined, focusing on the possibility of improving the process by suppressing the extended negative sidelobe in the beam pattern. A method for the compensation of this sidelobe is developed and applied to a study of the angular distribution of brightness temperature near the horizon. The results confirm the efficiency of the compensation of the negative sidelobe in the high-frequency channel of a correlation antenna, given a drop in the brightness temperature of the surface under study.

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