DocumentCode :
3485799
Title :
Advanced phased arrays for airborne radiometric imagers
Author :
Fourikis, N.
Author_Institution :
RF Technol. & Subsyst., Ascot Park, SA, Australia
fYear :
1996
fDate :
15-18 Oct 1996
Firstpage :
435
Lastpage :
437
Abstract :
Airborne high resolution and high sensitivity radiometric systems operating at mm (90 GHz) wavelengths hold the promise for high performance, all-weather ground surveillance and reconnaissance applications. The systems use planar phased arrays which generate N rows of staring antenna beams along lines perpendicular to the flight direction, so that a target is seen consecutively by N antenna beams; additionally the same systems can have substantial bandwidths. The beam forming function can be implemented either by using digital or analog techniques in conjunction with the Mills 0°-180° phase switching technique which greatly simplifies the beamforming network
Keywords :
aircraft communication; antenna phased arrays; antenna radiation patterns; millimetre wave antenna arrays; millimetre wave imaging; millimetre wave measurement; mobile antennas; radiometry; remote sensing; 90 GHz; airborne radiometric imagers; all-weather ground reconnaissance; all-weather ground surveillance; analog techniques; bandwidth; beam forming function; beamforming network; digital techniques; flight direction; high resolution radiometric systems; high sensitivity radiometric systems; mm wavelengths; phase switching technique; planar phased arrays; remote sensing; staring antenna beams; terrain imaging; Antenna arrays; Apertures; Bandwidth; Directive antennas; Phased arrays; Radiometry; Reconnaissance; Remote sensing; Spatial resolution; Surveillance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Phased Array Systems and Technology, 1996., IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-3232-6
Type :
conf
DOI :
10.1109/PAST.1996.566132
Filename :
566132
Link To Document :
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