Dual-Mode Supply Modulator IC With an Adaptive Quiescent Current Controller for Its Linear Amplifier in LTE Mobile Power Amplifier

Dual-Mode Supply Modulator IC With an Adaptive Quiescent Current Controller for Its Linear Amplifier in LTE Mobile Power Amplifier

This article presents a hybrid envelope tracking (ET) supply modulator (SM) integrated circuit (IC) based on a Class-AB linear amplifier (LA) with supply voltage and temperature insensitive quiescent current. For ET mode, to further improve efficiency of the ET-SM, the supply voltage of the LA can b...

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Bibliographic Details
Main Authors: Hansik Oh, Jaekyung Shin, Woojin Choi, Yifei Chen, Hyeongjin Jeon, Young Chan Choi, Hyungmo Koo, Keum Cheol Hwang, Kang-Yoon Lee, Youngoo Yang
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Power amplifier integrated circuit
supply modulator
envelope tracking
average power tracking
dual-mode power amplifier
Online Access:https://ieeexplore.ieee.org/document/9594803/

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