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International Journal of Antennas and Propagation
Volume 2009 (2009), Article ID 796064, 11 pages
http://dx.doi.org/10.1155/2009/796064
Review Article

Active SAR Antennas: Design, Development, and Current Programs

Thales Alenia Space Italia, Via Saccomuro 24, 00131 Roma, Italy

Received 17 October 2008; Revised 2 January 2009; Accepted 11 February 2009

Academic Editor: Giovanni Toso

Copyright © 2009 P. Capece. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The paper presents the design guidelines for Active SAR Antennas followed for the development of COSMO Sky Med SAR Antenna Subsystem. They have brought to define the antenna architecture, the RF, and electrical requirements for all the antenna RF, digital and power units, taking into account the available technologies and achievable performance. The antenna design is described for what the main subsystems is concerned, such as RF, power, digital, including mechanical and thermal aspects. Finally the paper reports also a brief description of the most recent development carried out in Canada and in Europe in the last ten years, including the on-going programs.