Presentation Information
[C-2A-07]A Broadband K-Band GaN MMIC Doherty Power Amplifier utilizing a Relative Input Phase Compensation Circuit
〇Keigo Nakatani1, Takuma Trii1, Ryuji Inagaki1, Akihito Hirai1 (1. Mitsubishi Electric Corporation)
Keywords:
K-band,GaN,Doherty amplifier,broadband,satellite communication
In Beyond 5G (B5G) networks, high-speed and large-capacity communications are expected to be realized in non-terrestrial networks (NTN) utilizing low Earth orbit (LEO) satellites and other platforms. Accordingly, Doherty power amplifiers are also regarded as a promising solution in the satellite communications field to improve efficiency under high peak-to-average power ratio (PAPR) signals. This paper reports the fabrication results of a wideband K-band GaN MMIC Doherty power amplifier employing a Relative Input Phase Compensation Circuit (RIPCC), which compensates for the relative phase difference between the carrier and peaking amplifiers to achieve wideband and high-efficiency operation in both back-off and saturation regions.