Design and Optimization of Highly Efficient RF Power Amplifiers for Acousto-Optic Tunable Filters in Spaceborne Applications
Pallab Kr Gogoi (TU Delft - Space Systems Egineering)
Jurgen Vanhamel (Katholieke Universiteit Leuven, TU Delft - Space Systems Egineering)
Jérôme Loicq (TU Delft - Spaceborne Instrumentation, Université de Liège)
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Abstract
This paper presents the design and optimization of highly efficient radio frequency power amplifiers (RFPAs) for driving acousto-optic tunable filters (AOTFs) in spaceborne applications. High efficiency is critical in such applications to minimize power consumption, heat dissipation, and enhance system reliability. However, RFPAs typically generate significant harmonic content and heat, which can induce thermal effects and compromise the optical measurement accuracy of AOTFs. This work investigates the trade-offs among efficiency, bandwidth, harmonic suppression, and tunable output power. Analytical modeling and parametric optimization are employed to derive practical design strategies. The results offer valuable insights for the development of efficient RF driving systems for AOTFs.
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