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Load Mismatch Compensation of Load-Modulated Power Amplifiers: A Comprehensive Review

Author

Listed:
  • Yufeng Zang

    (School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China)

  • Weimin Shi

    (School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China)

  • Jinting Liu

    (School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China)

  • Tian Qi

    (School of Engineering, Huanghe Science and Technology University, Zhengzhou 450006, China)

  • Mingyu Li

    (School of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China)

Abstract

With the diversification, acceleration, and arraying of wireless communication systems, power amplifiers (PAs) face stricter demands in terms of RF operation bandwidth, high-efficiency power range, and load mismatch compensation. After years of development, load-modulated PAs (LMPAs) can maintain high efficiency over a wide bandwidth and a larger output back-off (OBO) range. However, there is obvious performance degradation when the load impedance of the current LMPAs is mismatched. To ensure the perfect application of power amplifiers in wireless communication systems, load mismatch compensation methods should be developed for LMPAs. Therefore, this paper gives a comprehensive review on the load mismatch compensation techniques of LMPAs, including the Doherty power amplifier and load-modulated balanced amplifier.

Suggested Citation

  • Yufeng Zang & Weimin Shi & Jinting Liu & Tian Qi & Mingyu Li, 2025. "Load Mismatch Compensation of Load-Modulated Power Amplifiers: A Comprehensive Review," Energies, MDPI, vol. 18(9), pages 1-13, April.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:9:p:2157-:d:1640633
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