A frequency scanning system for mobile applications has been assessed for a European mission at Lband. Feasibility evaluations, electrical design and analysis have been performed for both the antenna and the entire repeater. Efforts have also been made to solve accommodation, thermal and mechanical problems, so as to demonstrate the actual feasibility of the frequency scanning concept in user-oriented applications. The very promising results obtained are presented in this paper.

This paper presents the development and the ultimate results of the qualification activities of the 12m unfurlable Reflector Assembly of the Large Deployable Antenna (LDA), jointly developed by the Prime Contractor: Alcatel Alenia Space Italia and several Partners, under an ESA contract. The qualification campaign will be finalized within September 2006, opening near term opportunities for space applications relying on a European technology. The paper also dedicates a section to a Flight Experiment (FE), which is a follow on activity of the LDA qualification, for the in orbit verification of the LDA performance. The final section of the paper provides an overview of the LDA possible applications at System level.

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