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The Doherty Power Amplifier: Design strategy

Moreno Rubio, Jorge Julian and Angarita-Malaver, Edison Ferney 2016. The Doherty Power Amplifier: Design strategy. Presented at: 2015 IEEE Thirty Fifth Central American and Panama Convention (CONCAPAN XXXV), Tegucigalpa, Honduras, 11-13 November 2015. 2015 IEEE Thirty Fifth Central American and Panama Convention (CONCAPAN XXXV). IEEE, p. 1. 10.1109/CONCAPAN.2015.7428473

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This paper shows a proposal of methodology for designing Doherty Power Amplifiers (DPAs) with arbitrary output-back-off (OBO), main and peak devices. As a demonstration, a 7.5dB OBO DPA has been designed, using two devices from Cree Inc, and simulated in Advanced Design System 2014. The amplifier uses the GaN-HEMT CGH40006 and CGH40010 devices, for main and peak branches, respectively. On the Doherty region, an output power of 25.1W has been obtained together with a gain higher than 15dB, whereas the obtained added efficiency has been demonstrated to be between 57 and 63%.

Item Type: Conference or Workshop Item (Paper)
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: IEEE
ISBN: 9781467378727
Last Modified: 20 May 2021 01:31

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