Three-Way Doherty Power Amplifier Using Class-F Amplifier for More Efficient Mobile Communications

Abdulkhaleq, Ahmed and Yahya, Maan and Sajedin, Maryam and Al-Yasir, Yasir and Ojaroudi Parchin, Naser and Rayit, Ashwain and Elfergani, Issa and Abd-Alhameed, Raed and Rodriguez, Jonothan (2020) Three-Way Doherty Power Amplifier Using Class-F Amplifier for More Efficient Mobile Communications. In: IMDC-SDSP 2020, 28-30 June 2020, Cyberspace.

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Abstract

An efficient three-way Doherty amplifier is designed and simulated using Microwave Office software, where the amplifier is targeting 3.4-3.8 GHz for 5G applications using three GaN HEMT transistors (6W, 25W and 45W) to achieve a 76W peak power. Each amplifier was designed to work as a class F amplifier to improve the efficiency of the designed amplifier. In addition, A new impedance modulation configuration is used, where a gain of 12.5 dB was achieved over the design band, in addition, a 13 dB back-off efficiency was achieved with 50-60% drain efficiency. Changing the location of the peaking amplifier or changing the operation sequence of the peaking amplifier can achieve good efficiency at the back-off region. There was an efficiency improvement of 10% at the back off by utilizing a class F amplifier comparing with the classical Doherty design.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: three way doherty amplifier class f efficiency back-off output power
Subjects: Q Science > QA Mathematics > QA76 Computer software
Depositing User: EAI Editor III.
Date Deposited: 12 Feb 2021 13:05
Last Modified: 12 Feb 2021 13:05
URI: https://eprints.eudl.eu/id/eprint/1094

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