Mitsubishi Electrical is creating a brand new know-how for realizing small, extremely environment friendly GaN energy amplifier modules for 5G base stations

TOKYO–(BUSINESS WIRE) – Mitsubishi Electric Corporation (TOKYO: 6503) announced today that they have developed a new technology to realize a Gallium Nitride (GaN) power amplifier module for 5G base stations that combines a compact (6mm x 10mm) footprint with additional high energy efficiency1, the latter exceeding an unprecedented 43% 2 rating. The module, which uses a minimum number of chip components in the matching circuit to control the high quality signal output, is expected to contribute to the realization of 5G base stations that are widespread and extremely energy efficient. Technical details of the new module will be presented in August at the IEEE International Microwave Symposium.

1 According to Mitsubishi Electric as of July 14, 2020

2 Use the 5G frequency range of 3.4-3.8 GHz

Key Features

  1. High-density assembly technology for realizing a compact (6 mm x 10 mm) power amplifier module for 5G base stations that can be used more widely

  • In 4G base stations that do not use massive multiple-input and multiple-output antennas (mMIMO), power amplifiers use metal foil transmission lines for the matching circuit. While this reduces power loss, resulting in highly efficient operation, transmission lines take up space and make it difficult to implement base stations that are both particularly small and particularly energy efficient. Mitsubishi Electric’s new technology eliminates the need for transmission lines in 5G power amplifiers.

  • The adaptation circuit of the new amplifier module is integrated in SMDs (Surface Mount Devices) such as capacitors and inductors. By introducing a highly accurate method for analyzing electromagnetic fields and applying a unique technology to densely arrange SMDs, Mitsubishi Electric has reduced the size of the amplifier to just one ninetieth the size of conventional power amplifiers

    3 Mitsubishi Electric’s 4G power amplifiers were released on January 12, 2017

The full text can be found at:

Comments are closed.