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Please use this identifier to cite or link to this item: http://hdl.handle.net/10651/32828

Title: Transmisor polar en UHF integrando un modulador de envolvente conmutado asistido por etapa lineal y un amplificador clase E a GaN HEMT
Author(s): Fernández Miaja, Pablo
Sebastián Zúñiga, Francisco Javier
Marante, Reinel
García García, José Ángel
Issue date: Sep-2012
Abstract: Spectrally efficient wireless communication standards impose stringent linearity specifications, which would require traditional IQ transmitters to operate with back-offed and power inefficient linear RF power amplifiers (PAs). In order to overcome such a significant limitation, alternative architectures have been proposed, as those based on the Envelope Elimination and Restoration (EER) technique. In this paper, a UHF polar transmitter is presented, combining switching and linear stages in the envelope amplifier as to achieve both great bandwidth and high efficiency, when drain modulating a GaN HEMT class E RF PA. Several tests, using EDGE, TETRA, and WCDMA standards have been performed with good results
Description: URSI 2012, XXVII Simposium Nacional de la Unión Científica Internacional de Radio, Elche
URI: http://hdl.handle.net/10651/32828
Appears in Collections:Ponencias, Discursos y Conferencias
Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas

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