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A Broadband Doherty Power Amplifier for Sub-6 5G Applications

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Proceedings of SIE 2022 (SIE 2022)

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 1005))

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Abstract

In this contribution, a workflow procedure adopted to design a Doherty Power Amplifier (DPA) for broadband Sub-6 5G frequency applications is presented. The approach developed accounts for loading effects of the auxiliary amplifier on the main amplifiers in back-off condition. Moreover, an improved version of optimum region (as opposed to optimum point) in the load and source pulling analysis is introduced. As proof of concept, a symmetric DPA is designed, fabricated and tested. The measurements showed a working frequency band from 3.3 to 3.9 GHz (aimed at n78 band of 5G-NR), a minimum peak output power of 36 W, with a drain efficiency between 48% and 53.22% at peak power, and 34.6%–44.5% at 6 dB of back-off while the transistor maintained a minimum gain of 5.4 dB.

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Authors and Affiliations

  1. School of Advanced Technologies, Iran University of Science and Technology, Tehran, Iran

    Mohammad Shahmordi, Sayyed-Hossein Javid-Hosseini & Vahid Nayyeri

  2. Electronic Engineering Department, University of Rome Tor Vergata, Rome, Italy

    Rocco Giofrè & Paolo Colantonio

Authors
  1. Mohammad Shahmordi
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  2. Sayyed-Hossein Javid-Hosseini
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  3. Vahid Nayyeri
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  4. Rocco Giofrè
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  5. Paolo Colantonio
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Corresponding author

Correspondence to Paolo Colantonio .

Editor information

Editors and Affiliations

  1. DIMES, University of Calabria, Arcavacata, Italy

    Giuseppe Cocorullo

  2. DIMES, University of Calabria, Arcavacata, Italy

    Felice Crupi

  3. Dipartimento di Ingegneria Elettronica, University of Rome Tor Vergata, Rome, Italy

    Ernesto Limiti

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Shahmordi, M., Javid-Hosseini, SH., Nayyeri, V., Giofrè, R., Colantonio, P. (2023). A Broadband Doherty Power Amplifier for Sub-6 5G Applications. In: Cocorullo, G., Crupi, F., Limiti, E. (eds) Proceedings of SIE 2022. SIE 2022. Lecture Notes in Electrical Engineering, vol 1005. Springer, Cham. https://doi.org/10.1007/978-3-031-26066-7_11

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  • DOI: https://doi.org/10.1007/978-3-031-26066-7_11

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-031-26065-0

  • Online ISBN: 978-3-031-26066-7

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