High efficiency power amplifiers for modern mobile communications: The load-modulation approach

Ramella, Chiara, Piacibello, Anna, Quaglia, Roberto ORCID: https://orcid.org/0000-0003-3228-301X, Camarchia, Vittorio and Pirola, Marco 2017. High efficiency power amplifiers for modern mobile communications: The load-modulation approach. Electronics 6 (4) , 96. 10.3390/electronics6040096

Preview

PDF - Published Version Available under License Creative Commons Attribution. Download (32MB) | Preview

Abstract

Modern mobile communication signals require power amplifiers able to maintain very high efficiency in a wide range of output power levels, which is a major issue for classical power amplifier architectures. Following the load-modulation approach, efficiency enhancement is achieved by dynamically changing the amplifier load impedance as a function of the input power. In this paper, a review of the widely-adopted Doherty power amplifier and of the other load-modulation efficiency enhancement techniques is presented. The main theoretical aspects behind each method are introduced, and the most relevant practical implementations available in recent literature are reported and discussed.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	MDPI
ISSN:	2079-9292
Date of First Compliant Deposit:	16 July 2018
Date of Acceptance:	9 November 2017
Last Modified:	12 May 2023 14:43
URI:	https://orca.cardiff.ac.uk/id/eprint/112464

Citation Data

Cited 36 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item