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Wireless

First GaN envelope-tracking power amplifier gets launched

Friday 19 May 2017 | 12:10 CET | News

Mitsubishi Electric, Nokia Bell Labs and the Center for Wireless Communications at UC San Diego announced their joint development of what they call the world’s first ultra-fast gallium nitride (GaN) envelope-tracking power amplifier, which supports modulation bandwidth up to 80MHz and is expected to reduce energy consumption in wireless base stations. Technical details will be presented during the IEEE MTT International Microwave Symposium (IMS) 2017, which will be held in Honolulu, Hawaii, USA from 4 to 9 June.

The newly developed ultra-fast GaN envelope-tracking power amplifier achieves performance thanks in part to Mitsubishi Electric’s high-frequency GaN transistor technology and design innovation for the GaN supply-modulator circuit. Using Nokia Bell Labs’ real-time digital pre-distortion (DPD) system, the power amplifier has demonstrated efficient operation even with 80MHz modulated LTE signals, the world’s widest modulation bandwidth for this purpose as of 19 May.



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