GaN HEMT class-E rectifier for DC+AC power recovery

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URI: http://hdl.handle.net/10902/12382
ISBN: 978-1-5090-6360-4
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Autoría
Ruiz Lavín, María de las NievesAutoridad Unican; Vegas Bayer, DavidAutoridad Unican; Pérez Cisneros, José Ramón; García García, José ÁngelAutoridad Unican
Fecha
2017
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© 2017 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), Honolulu, Hawai, 2017, 318-321
Editorial
IEEE
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Palabras clave
Class-E
GaN HEMT
Rectifier
Wireless power transmission
Resumen/Abstract
A 915 MHz GaN HEMT-based class-E rectifier is proposed in this paper to be used for DC+AC wireless power recovery. Taking advantage of the time reversal (TR) duality principle, the rectifier was derived from a class-E inverter, whose output network was designed for high-efficiency operation over a wide range of resistive loads. The addition of an appropriate gateside termination allows the device to be turned-on without an additional RF source for gate driving. The rectifier reduced sensitivity to load variation, as well as its capability for efficiently and linearly recovering the envelope of an AM RF excitation, were then characterized. An average efficiency of 82% has been measured for the combined RF-to-DC and RF-to-AC power conversion of a 1.6 W modulated carrier. Frequency multiplexing and frequency modulation alternatives for high-level DC+AC wireless power transmission are finally presented.
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