Title :
The TerraSAR-X antenna system
Author :
Grafmüller, Bernhard ; Herschlein, Alexander ; Fischer, Christian
Author_Institution :
EADS-Astrium GmbH, Friedrichshafen, Germany
Abstract :
TerraSAR-X is a space borne high resolution imaging synthetic aperture system, based on advanced active phased array technology. The paper presents an overview of the TerraSAR-X frontend and discusses the strategy for antenna testing, verification and in-orbit pattern prediction. As an integral part of this approach, an antenna model has been developed which allows, on the basis of embedded subarray measurements, the calculation of the overall antenna pattern for a given gain/phase setting of the T/R-modules.
Keywords :
antenna radiation patterns; image resolution; radar antennas; radar imaging; radar resolution; spaceborne radar; TerraSAR-X antenna system; active phased array technology; antenna pattern; antenna testing; embedded subarray measurements; in-orbit pattern prediction; space borne high resolution imaging synthetic aperture system; Antenna measurements; Aperture antennas; Extraterrestrial measurements; High-resolution imaging; Loss measurement; Phase measurement; Phased arrays; Polarization; Radar antennas; Space technology;
Conference_Titel :
Radar Conference, 2005 IEEE International
Print_ISBN :
0-7803-8881-X
DOI :
10.1109/RADAR.2005.1435823
