Advanced Doherty Power Amplifier Architectures for 5G Handset Applications: A Comprehensive Review of Linearity, Back-Off Efficiency, Bandwidth, and Thermal Management

This paper presents a comprehensive review of GaAs HBT-based Doherty power amplifiers (DPAs) targeting 5G New Radio (NR) handset applications. Focusing on the critical challenges of linearity enhancement, back-off efficiency improvement, bandwidth extension under low-voltage (3.4 V) operation, and c...

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Bibliographic Details
Main Authors: Shihai He, Huan Chen
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Chips
Subjects:
Online Access:https://www.mdpi.com/2674-0729/4/2/20
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