Development Review of Broadband and Multi-Band Outphasing Power Amplifiers for High-Efficiency Amplification

Yu Zhang, Chunyu Hu (), Xia Liu, Jun Wang, Wenxu Zhong, Ping Tian, Shuai Lin and Weimin Shi
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Yu Zhang: Shandong Non-Metallic Materials Research Institute, Jinan 250031, China
Chunyu Hu: School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China
Xia Liu: Shandong Non-Metallic Materials Research Institute, Jinan 250031, China
Jun Wang: Zibo Institute of Measurement Technology, Zibo 255033, China
Wenxu Zhong: Shandong Non-Metallic Materials Research Institute, Jinan 250031, China
Ping Tian: Shandong Non-Metallic Materials Research Institute, Jinan 250031, China
Shuai Lin: Shandong Non-Metallic Materials Research Institute, Jinan 250031, China
Weimin Shi: School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China

Energies, 2023, vol. 17, issue 1, 1-14

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.

Keywords: power amplification; outphasing; broadband; multi-band (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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