Series combination of a switched dc-dc converter and a linear regulator for high frequency RF envelope amplifier

García Suárez, Oscar and Vasic, Miroslav and Alou Cervera, Pedro and Oliver Ramírez, Jesús Angel and Díaz López, Daniel and Cheng, Pengming and Cobos Márquez, José Antonio (2011). Series combination of a switched dc-dc converter and a linear regulator for high frequency RF envelope amplifier. In: "Proceedings XXVI Simposio de la URSI (Unión Científica Internacional de Radio)", 07/09/2011 - 09/09/2011, Leganés (Spain). pp. 1-8.

Description

Title: Series combination of a switched dc-dc converter and a linear regulator for high frequency RF envelope amplifier
Author/s:
  • García Suárez, Oscar
  • Vasic, Miroslav
  • Alou Cervera, Pedro
  • Oliver Ramírez, Jesús Angel
  • Díaz López, Daniel
  • Cheng, Pengming
  • Cobos Márquez, José Antonio
Item Type: Presentation at Congress or Conference (Article)
Event Title: Proceedings XXVI Simposio de la URSI (Unión Científica Internacional de Radio)
Event Dates: 07/09/2011 - 09/09/2011
Event Location: Leganés (Spain)
Title of Book: XXVI Simposio de la URSI (Unión Científica Internacional de Radio)
Date: 2011
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Automática, Ingeniería Electrónica e Informática Industrial [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Classical linear amplifiers such as A, AB and B offer very good linearity suitable for RF power amplifiers. However, its inherent low efficiency limits its use especially in base-stations that manage tens or hundreds of Watts. The use of linearization techniques such as Envelope Elimination and Restoration (EER) allow an increase of efficiency keeping good linearity. This technique requires a very fast dc-dc power converter to provide variable voltage supply to the power amplifier. In this paper, several alternatives are analyzed to implement the envelope amplifier based on a cascade association of a switched dc-dc converter and a linear regulator. A simplified version of this approach is also suitable to operate with Envelope Tracking technique.

More information

Item ID: 13365
DC Identifier: http://oa.upm.es/13365/
OAI Identifier: oai:oa.upm.es:13365
Deposited by: Memoria Investigacion
Deposited on: 25 Feb 2013 12:43
Last Modified: 21 Apr 2016 12:41
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