a 5G Doherty Power Amplifier Design Using Two-Section Impedance Transfer Networks
DOI:
https://doi.org/10.14500/aro.12810Keywords:
5G new radio applications, Branchline coupler, Compact design, Doherty power amplifier, Matching networksAbstract
This paper introduces a simulation-based design study of a high-performance 2.6 GHz Doherty power amplifier (DPA) designed for 5G New Radio n7 and n38 frequency band applications. The proposed DPA incorporates a branch-line coupler, replacing conventional impedance inverter and impedance transformer networks. Furthermore, an innovative compact two-section impedance matching network is incorporated in the amplifier structure to reduce size and improve performance. This novel approach results in superior performance, particularly at high output power levels. A class-AB amplifier serves as the main stage, whereas a class-C amplifier functions as the auxiliary stage, ensuring efficient power utilization. Operating at 2.6 GHz, the proposed DPA demonstrates a drain efficiency of 45% and a maximum gain of 15 dB. In comparison with a typical DPA, the proposed design occupies 75% of the size, which shows a size reduction of 25%.
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Copyright (c) 2026 Fawwaz Hazzazi, Salah I. Yahya, Reza Ebrahim Pourian, Ali Roshani, Saeid MahdiAbadi, Saeed Roshani, Sobhan Roshani
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Accepted 2026-08-07
Published 2026-09-17
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