This paper provides an overview of two recently completed SAR studies at Astrium together with a summary of the capabilities of the TSX (TerraSAR-X) satellite. The two studies: HRWS (High Resolution Wide Swath radar) and LCMA (Low Cost Multifeed Antenna) are concerned with novel antenna beam forming concepts for the SAR imaging modes. The pros and cons are discussed and compared with TSX -a SAR with an active phased array antenna.Index Terms -synthetic aperture radar, active antennas.
Within the frame of the national technology program MTSA (Microstrip Technology for SAR Antennas) lightweight microstrip patch arrays for X-Band with dual linear polarisation were developed, manufactured and qualified for space application. This paper reports on this program and discusses the suitability for space applications.Übersicht Im Rahmen des nationalen Technologieprogrammes MTSA (Micostrip Technologie für SAR-Antennen) wurden Microstrip Patch Strahler in Leichtbauweise für das X-Band mit dual-linearer Polarisation entwickelt, gefertigt und qualifiziert. Dieser Bericht umfaßt die Beschreibung des durchgeführten Qualifikationsprogrammes im Hinblick auf eine Anwendbarkeit der Microstrip-Patch-Strahler für die Raumfahrt.Für die Dokumentation Patch-Antenne / Leichtbauweise / Raumfahrt / Qualifikation
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