E3S Web Conf.
Volume 16, 201711th European Space Power Conference
|Number of page(s)||6|
|Section||Power Management & Distribution: DC/DC Converters|
|Published online||23 May 2017|
Very High Frequency Power Switching: A Road Map To Envelope Tracking
1 ESA/ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
2 ESA/ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
RF (Radio Frequency) GaN transistors may be used for power switching at frequencies of 30 MHz and above, thereby reaching voltage control bandwidth of critical interest for the so-called ET (Envelope Tracking) technique. ET is meant at optimising the efficiency of RF amplifiers by supplying them with a voltage adapted to their power level at any time, and is the subject of many R&D works worldwide. The present paper provides an overview on the different activities run at the European Space Agency so far in this context, and present the possible way-forward to embark ET on future spacecraft.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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