1. Development Review of Broadband and Multi-Band Outphasing Power Amplifiers for High-Efficiency Amplification.
- Author
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Zhang, Yu, Hu, Chunyu, Liu, Xia, Wang, Jun, Zhong, Wenxu, Tian, Ping, Lin, Shuai, and Shi, Weimin
- Subjects
- *
POWER amplifiers , *WIRELESS power transmission , *LITERATURE reviews , *TECHNOLOGICAL innovations - Abstract
Outphasing power amplifiers (OPAs) can be used in wireless information and power transfer systems due to their excellent conversion efficiency. With the rapid advancement of technology, there is a strong demand for OPAs to achieve wideband and multi-band operations to enhance frequency coverage. This paper provides a comprehensive review of the research progress on the development of broadband and multi-band board-level OPAs. Firstly, the paper introduces the fundamental components of an OPA. Then, the paper delves into a detailed analysis of the load modulation of OPAs. Subsequently, previous works on the circuit topology and design methods for broadband and multi-band OPAs are discussed and compared. The paper highlights various design strategies and their respective advantages and disadvantages. Finally, the paper explores some potential design methods for broadband and multi-band OPAs, discussing emerging technologies and highlighting potential research directions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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