Ka-band CMOS Power Amplifier with Self-Biasing-Resistor

Younseok Han; Gwanghyeon Jeong

doi:10.23075/jicas.2024.10.2.002

Younseok Han Hanbat National University
GwanghyeonJeong Hanbat National University

DOI: https://doi.org/10.23075/jicas.2024.10.2.002

Keywords: AC Dividing, AM-AM, Cascode, CMOS, Ka-band

Abstract

In this paper, a CMOS power amplifier using a self-biasing-resistor transistor for Ka-band is proposed. Generally, when designing a power amplifier with a cascode structure, a structure connecting the source and body of the transistor is used. This changes the intercascode voltage depending on the output of the common source stage, which changes the body voltage of the common gate stage, ultimately changing the I-V curve. Therefore, by inserting a large resistor between the body and the source, parasitic capacitors are used to split the RF swing in the body and compensate for voltage changes. As a result, AM-AM and IMD3 have been improved, and it has a linear output power of 13.1dBm and a linear PAE of 22.6% at a supply voltage of 2.4V.

Author Biographies

Younseok Han, Hanbat National University

Younseok Han received the B.S degree in the department of information and communication engineering at Hannam University, Daejeon, South Korea, in 2024. He is currently working toward the M.S degree in department of intelligent nano semiconductor engineering, Hanbat National University, Daejeon, South Korea. His current research interests include CMOS Power Amplifier for Ka-band.

GwanghyeonJeong, Hanbat National University

Gwanghyeon Jeong received B.S. and M. S. and the Ph.D degree in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea, in 2012, 2014, and 2018, respectively. He was with the Agency for Defense Development (ADD) from May 2018 to January 2021, and Hannam University from March 2021 to February 2023. He is now with the department of semiconductor system engineering, Hanbat National University, Daejeon, South Korea, as an assistant professor from March 2024. His research interests are RF circuits and systems for future wireless communications.

Homepage : https://sites.google.com/view/hbnu-smart