RBS High Efficiency Power Amplifier Research – Challenges and Possibilities

This text gives an overview of critical technology challenges for high efficiency power amplifiers used in future mobile broadband systems. Implementation aspects of efficient wideband multi-band transmitters are discussed. Simulations of and design implications for a multi-band 1.8–2.7 GHz high efficiency power amplifier using GaN transistors are presented. Finally possible transmitter architectures with potential of meeting ambitious efficiency, flexibility and frequency range goals are briefly analyzed.

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