High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique

Vasic, Miroslav; García Suárez, Oscar; Oliver Ramírez, Jesús Angel; Alou Cervera, Pedro; Díaz López, Daniel; Cobos Márquez, José Antonio; Gimeno Martín, Alejandro; Pardo Martin, José Manuel; Benavente Peces, César y Ortega González, Francisco Javier (2010). High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique. En: "2nd IEEE Energy Conversion Congress and Exposition (ECCE 2010)", 12/09/2010 - 16/09/2010, Atlanta, Georgia, EEUU. ISBN 978-1-4244-5286-6.

Descripción

Título: High Efficiency Power Amplifier Based on Envelope Elimination and Restoration Technique
Autor/es:
  • Vasic, Miroslav
  • García Suárez, Oscar
  • Oliver Ramírez, Jesús Angel
  • Alou Cervera, Pedro
  • Díaz López, Daniel
  • Cobos Márquez, José Antonio
  • Gimeno Martín, Alejandro
  • Pardo Martin, José Manuel
  • Benavente Peces, César
  • Ortega González, Francisco Javier
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 2nd IEEE Energy Conversion Congress and Exposition (ECCE 2010)
Fechas del Evento: 12/09/2010 - 16/09/2010
Lugar del Evento: Atlanta, Georgia, EEUU
Título del Libro: Proceedings of the 2nd IEEE Energy Conversion Congress and Exposition (ECCE 2010)
Fecha: Noviembre 2010
ISBN: 978-1-4244-5286-6
Materias:
Escuela: E.U.I.T. Telecomunicación (UPM) [antigua denominación]
Departamento: Ingeniería de Circuitos y Sistemas [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Due to complex envelope and phase modulation employed in modern transmitters it is necessary to use power amplifiers that have high linearity. Linear power amplifiers (classes A, B and AB) are commonly used, but they suffer from low efficiency especially if the transmitted signal has high peak to average power ratio (PAPR). Kahn's technique based on envelope elimination and restoration (EER) is based on idea that high efficiency power supply (envelope amplifier) could be used to modulate the envelope of high efficient non linear power amplifiers (classes D or E). This paper presents solutions for power amplifier that performs envelope modulation and class E amplifier that is used as a non linear amplifier. The envelope amplifier is implemented as a multilevel converter in series with linear regulator and can provide up to 100 W of instantaneous power and reproduce 2 MHz sine wave. The implemented Class E amplifier can operate at 120 MHz with efficiency near to 85%. The envelope amplifier and class E amplifier have been integrated and efficiency and linearity of the implemented transmitter has been measured and presented

Más información

ID de Registro: 7900
Identificador DC: http://oa.upm.es/7900/
Identificador OAI: oai:oa.upm.es:7900
URL Oficial: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5617763&tag=1
Depositado por: Memoria Investigacion
Depositado el: 28 Jul 2011 08:22
Ultima Modificación: 20 Abr 2016 16:51
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