A new drive modulation applied to an L-band EER transmitter

Tena Ramos, David and Ortega González, Francisco Javier and Patiño Gómez, Moisés and Pardo Martín, José Manuel (2016). A new drive modulation applied to an L-band EER transmitter. In: "SAAEI'16 : Seminario Anual de Automática, Electrónica Industrial e Instrumentación 2016", 06/07/2016 - 08/07/2016, Elche. pp. 1-4.

Description

Title: A new drive modulation applied to an L-band EER transmitter
Author/s:
  • Tena Ramos, David
  • Ortega González, Francisco Javier
  • Patiño Gómez, Moisés
  • Pardo Martín, José Manuel
Item Type: Presentation at Congress or Conference (Article)
Event Title: SAAEI'16 : Seminario Anual de Automática, Electrónica Industrial e Instrumentación 2016
Event Dates: 06/07/2016 - 08/07/2016
Event Location: Elche
Title of Book: Actas del Seminario Anual de Automática, Electrónica Industrial e Instrumentación 2016 (SAAEI2016)
Date: 2016
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

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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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainDPI2013-47799-C21-RUnspecifiedUnspecifiedUnspecified

More information

Item ID: 46497
DC Identifier: http://oa.upm.es/46497/
OAI Identifier: oai:oa.upm.es:46497
Official URL: http://www.saaei.org/edicion16/
Deposited by: Memoria Investigacion
Deposited on: 16 Mar 2018 18:40
Last Modified: 30 Sep 2018 22:30
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