[C-2A] Microwave and Millimeter Wave Active Devices and Circuits

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Candidate for Academic Incentive Award

[C-2A-09] A 24GHz High-efficiency GaN Power Amplifier for Millimeter Wave band WPT

◎Eitaro Noda¹, Keigo Nakatani¹, Akihito Hirai¹, Hideyuki Nakamizo¹ (1. Mitsubishi Electric Corporation)

Keywords:

GaN,MMIC,amplifier,wireless power transfer

Wireless power transfer (WPT) is a technology that enables wireless power delivery to drones, IoT devices, and lunar and Martian exploration vehicles, and is one of the emerging energy solutions. In particular, millimeter-wave WPT using beamforming has attracted attention in recent years because of its advantages in system miniaturization. On the other hand, at 24 GHz, which is a representative frequency band used for millimeter-wave WPT, the efficiency degradation of high-power amplifiers remains a challenge. Furthermore, because beamforming-based millimeter-wave WPT employs a large number of amplifiers, the amplifiers are required to be robust against process variations. In this report, we present the design and measurement results of a 24-GHz GaN MMIC amplifier for millimeter-wave WPT, featuring high robustness to process variations and high efficiency.