Design and Simulation of an Improved Doherty Power Amplifier

Abstract:

This work presents theory, design and simulation of an improved power amplifier based on the Doherty topology. It is theoretically shown that, by using multiple iterations of the source-pull and the load-pull in the platform of ADS with a Doherty power amplifier topology, the proposed amplifier can provide higher efficiency both at full output power and at back-off power, thus validating practical effects of the design and demonstrating a promising prospect of the design to be used in the future wireless transmitter applications.

• Periodical: Applied Mechanics and Materials (Volumes 496-500)
• Pages: 1109-1112
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.496-500.1109
• Online since: January 2014
• Authors: Yang Liu, Huai Bao Xiao
• Keywords: Doherty, High Efficiency, Inverted Structure, Load-Pull, Multiple Iterations, Power Amplifiers, Source-Pull

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