Proceedings ArticleDOI
New Travelling Wave Tubes for L-Band and S-Band in Orbit Applications
P. Ehret,Ernst Bosch,Wolfgang Durr +2 more
- pp 1-2
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TLDR
In this paper, the authors present some technical details and illustrate the performance of state-of-the-art TWTs for L-band and S-band satellite downlink applications.Abstract:
The ongoing development in satellite application requires more and more high power travelling wave tubes (TWT) to relieve the requirements for end user terminals and to improve the quality and channel capacity of the satellite down link. Also more types of TWTs are demanded by the customers to obtain a higher flexibility in satellite design with respect to output power, weight and thermal requirements. Thales Electron Devices (TED) therefore has filled up its portfolio of different TWTs for L-Band and S-Band. This paper will present some technical details and illustrate the performance of state- of-the-art tubes.read more
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Proceedings Article
A high efficiency 140W power amplifier based on a single GaN HEMT device for space applications in L-band
TL;DR: In this article, the design, manufacture and test of a high efficiency power amplifier for L-band space borne applications is described, which operates with a single 36 mm gate periphery GaN HEMT power bar die allowing both improved integration and performance.
Proceedings ArticleDOI
4.1: Navigation traveling wave tube amplifiers - trade-off aspects
TL;DR: In this paper, a methodology is presented in order to trade-off some of the key aspects in the design of next-generation navigation satellite payloads, including the signal quality and the level of out-of-band emissions.
References
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Proceedings ArticleDOI
Space Applications for L-Band Traveling Wave Tubes
TL;DR: The Traveling Wave Tubes (TWT) for satellite application are based on a well known physical theory and have a large space proven heritage which can be used not only for standard CW operation but also for the transmission of very sensible data like modulated signals in the L-band for navigation systems as discussed by the authors.