January 10, 2019
Mitsubishi Electric Corporation announced today its development of the world's first ultra-wideband digitally controlled gallium nitride (GaN) amplifier, which is compatible with a world-leading range of sub-6GHz bands focused on fifth-generation (5G) mobile communication systems. With a power efficiency rating of above 40%, the amplifier is expected to contribute to large-capacity communication and reduce the power consumption of mobile base stations.
MERL and Mitsubishi Electric researchers collaborated to develop digital control methods for amplifiers achieving high-efficiency of 40% and above, with 110% of the fractional bandwidth over frequency range 1.4-4.8 GHz. The digital control signals are designed using a learning-function based on Maisart®.
Please see the link below for the full Mitsubishi Electric press release text.
- Related Publications:
- "Machine-Learning Based Digital Doherty Power Amplifier", IEEE International Symposium on Radio Frequency Integration Technology (RFIT), DOI: 10.1109/RFIT.2018.8524126, August 2018. ,
- "Stochastically Approximated Multiobjective Optimization of Dual Input Digital Doherty Power Amplifier", IEEE International Workshop on Computational Intelligence and Applications, DOI: 10.1109/IWCIA.2017.8203576, November 2017. ,