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Mitsubishi Electric Develops Ultra-Wideband Digitally Controlled GaN Amplifier for Mobile Base Stations

January 10, 2019

TOKYO--(BUSINESS WIRE)--Jan 9, 2019--Mitsubishi Electric Corporation (TOKYO: 6503) 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.

* According to Mitsubishi Electric research as of January 10, 2019 ** Output power level equivalent to 6.5dB peak-to-average power ratio (PAPR) modulated signal

Key Features

1) Novel load modulation achieves wideband operation and contributes to large-capacity communication

Mitsubishi Electric’s novel ultra-wideband digitally controlled GaN amplifier uses an advanced load modulation circuit with two parallel GaN transistors. The circuit expands the bandwidth of load modulation, a key factor for the amplifier’s high-efficiency operation, for wideband (1.4–4.8GHz) operation. Wide-band operation of amplifier supports several frequency bands.

2) Digital control realizes high-efficiency operation and reduces power consumption of mobile base stations

Digitally controlled input signals for amplifier realize high-efficiency load modulation of above 40% over 110% of the fractional bandwidth. Digital control employs learning function based on Maisart ®***. Improved efficiency of amplifier helps to reduce power consumption in mobile base stations.

***M itsubishi Electric’s AI creates the S tate-of-the- ART in technology

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Mitsubishi Electric Corporation

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Takeyoshi Komatsu

Public Relations Division

Mitsubishi Electric Corporation

Tel: +81-3-3218-2346

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www.MitsubishiElectric.com/news

KEYWORD: ASIA PACIFIC JAPAN

INDUSTRY KEYWORD: TECHNOLOGY HARDWARE TELECOMMUNICATIONS SEMICONDUCTOR MOBILE/WIRELESS MANUFACTURING OTHER MANUFACTURING

SOURCE: Mitsubishi Electric Corporation

Copyright Business Wire 2019.

PUB: 01/09/2019 09:10 PM/DISC: 01/09/2019 09:11 PM

http://www.businesswire.com/news/home/20190109005343/en

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