Nueva técnica de modulación de excitación para sistemas EER

Tena Ramos, David and Ortega González, Francisco Javier and Patiño Gómez, Moises and Pardo Martín, José Manuel (2015). Nueva técnica de modulación de excitación para sistemas EER. In: "XXX Simposium Nacional de la Unión Científica Internacional de Radio, URSI 2015", 02/09/2015 - 04/09/2015, Pamplona, España. pp. 1-4.

Description

Title: Nueva técnica de modulación de excitación para sistemas EER
Author/s:
  • Tena Ramos, David
  • Ortega González, Francisco Javier
  • Patiño Gómez, Moises
  • Pardo Martín, José Manuel
Item Type: Presentation at Congress or Conference (Article)
Event Title: XXX Simposium Nacional de la Unión Científica Internacional de Radio, URSI 2015
Event Dates: 02/09/2015 - 04/09/2015
Event Location: Pamplona, España
Title of Book: Libro de Actas del XXX Simposium Nacional de la Unión Científica Internacional de Radio, URSI 2015
Date: 2015
Subjects:
Faculty: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Department: Teoría de la Señal y Comunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (7MB) | Preview

Abstract

This paper shows a novel drive modulation technique applied to a high power, high efficiency, linear Envelope Elimination and Restoration (EER) amplifier for L-Band. It comprises a mixed-mode suboptimum Class-E / Class-A wideband RF amplifier based on a dual GaN HEMT for RF carrier amplification and a high efficiency, high switching frequency, multi-phase, buck power converter based on Silicon LDMOS transistors to work as a modulator (or envelope amplifier). The linearity and power gain for this EER amplifier is improved by means of a new digital drive modulation technique and digital predistortion (DPD) to achieve linearity performances equivalent or better than Class-AB amplifiers of similar output power level and frequency band but exhibiting much higher efficiency. This EER amplifier provides 120W peak output power at the L-band without any adjustment. In a two tone test, measured third and fifth-order intermodulation products were -45 dBc and -49 dBc, respectively, reaching 67.5 % maximum PAE.

More information

Item ID: 42474
DC Identifier: http://oa.upm.es/42474/
OAI Identifier: oai:oa.upm.es:42474
Official URL: http://www.unavarra.es/ursi2015
Deposited by: Memoria Investigacion
Deposited on: 04 Apr 2017 13:50
Last Modified: 04 Apr 2017 13:50
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM