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E-band transmitter with 29 dBm RF power for satellite communication

: Harati, P.; Tessmann, A.; Schwantuschke, D.; Henneberger, R.; Kallfass, I.


European Microwave Association:
46th European Microwave Conference, EuMC 2016. Proceedings : 4-6 October 2016, London, UK, European Microwave Week (EuMW) 2016
London: Horizon House, 2016
ISBN: 978-2-87487-043-9
European Microwave Conference (EuMC) <46, 2016, London>
European Microwave Week (EuMW) <19, 2016, London>
Bundesministerium für Wirtschaft und Technologie BMWi
Conference Paper
Fraunhofer IAF ()

In this paper an E-band transmitter chain with a maximum RF output power of 29 dBm for a 1 GBd QPSK signal is presented. The high output power is achieved by applying AlGaN/GaN-based power amplifiers as final stage of a module chain which further comprises a GaAs mHEMT-based quadrature up-converter, LO frequency multiplier-by-eight and driver amplifiers. The output power remains higher than 27 dBm for up to 6 GBd symbol rate and a modulation complexity of up to 32 QAM. In this work the effect of different PSK and QAM modulation format as well as the baud rate on the transmitted RF power level is studied through measurements. The linearity of the dual GaN PA module is evaluated for different types of modulation formats.