A planar 75% efficient GaN 1.2-GHz DC-DC converter with self-synchronous rectifier

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Identificadores
URI: http://hdl.handle.net/10902/10205
ISBN: 978-1-4799-8275-2
ISBN: 978-1-4799-8276-9
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Autoría
Ramos, Ignacio; Ruiz Lavín, María de las NievesAutoridad Unican; García García, José ÁngelAutoridad Unican; Maksimovic, Dragan; Popovic, Zoya
Fecha
2015
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© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Publicado en
IEEE MTT-S International Microwave Symposium (IMS), Phoenix, Arizona, 2015, 470-473
Editorial
IEEE
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Palabras clave
DC-DC converters
High efficiency power amplifiers
Rectifiers
Harmonic terminations
Resumen/Abstract
This paper presents the design and characterization of a DC-DC converter operating at 1.2GHz with a maximum efficiency of 75% at 4.6W output power, and with a maximum output power of 13W at 58% efficiency. The microwave converter consists of a GaN class-E power amplifier coupled to a GaN class-E rectifier. The circuit is planar and exhibits a power density of approximately 0.65W/cm3 at the 75% efficiency point. The rectifier can be operated with input gate drive or selfsynchronously with a single RF input.
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