Title :
A cross-array radiometer for spacecraft applications
Author :
Gregorwich, W. ; Dickinson, D.F.
Author_Institution :
Lockheed Palo Alto Res. Lab., CA, USA
Abstract :
Large-area surveillance can be achieved by the use of a beam-forming antenna consisting of two crossed linear arrays. Such an antenna has the advantage that it can be steered electronically and its beam synthesized so that it will have a resolution fully equivalent to that of a filled antenna of equal diameter. It would also be a much lighter antenna, probably no more than 10% to 15% the weight of a filled aperture. The beam-forming function would require the use of high-speed, integrated circuitry. Coverage issues are addressed, and implementation is discussed.<>
Keywords :
antenna arrays; artificial satellites; satellite antennas; beam synthesis; beam-forming antenna; cross-array radiometer; crossed linear arrays; electronic beam steering; integrated circuitry; large-area surveillance; spacecraft applications; Antenna arrays; Aperture antennas; Arm; Circuits; Directive antennas; Laboratories; Linear antenna arrays; Milling machines; Radiometry; Space vehicles;
Conference_Titel :
Aerospace Applications Conference, 1989. Digest., 1989 IEEE
Conference_Location :
Breckenridge, CO, USA
DOI :
10.1109/AERO.1989.82409
