Title :
A reconfigurable class E oscillator/rectifier based on an E-pHEMT
Author :
Ruiz, M. Nieves ; González, Álvaro ; Marante, Reinel ; Garcia, José A.
Author_Institution :
Dept. of Commun. Eng., Univ. of Cantabria, Santander, Spain
Abstract :
In this paper, a reconfigurable class E oscillator/rectifier, based on an Enhancement-mode Pseudomorphic High Electron Mobility Transistor (E-pHEMT), is proposed. Using high Q lumped elements for implementing the desired terminations at drain side, as well as for the feedback/phase shifting network, the same circuit can be used either as a DC-to-RF inverter for efficient signal transmission, or as a RF-to-DC rectifier for wireless powering. Designed at the 960 MHz frequency band, an efficiency value of 76% has been measured in the oscillating mode for an output power of 17.5 dBm, with a -127 dBc/Hz phase noise figure at 1 MHz frequency offset. A 79.6% peak efficiency value has been obtained when operated as rectifier.
Keywords :
UHF oscillators; UHF transistors; high electron mobility transistors; invertors; rectifiers; DC-to-RF inverter; E-pHEMT; RF-to-DC rectifier; efficiency 79.6 percent; enhancement-mode pseudomorphic high electron mobility transistor; feedback-phase shifting network; frequency 90 MHz; high Q lumped elements; oscillating mode; phase noise figure; reconfigurable class E oscillator-rectifier; signal transmission; wireless powering; Frequency measurement; Noise; Noise measurement; Oscillators; Phase measurement; Power measurement; Rectifiers; Class E; E-pHEMT; oscillator; reconfigurability; rectenna; rectifier;
Conference_Titel :
Integrated Nonlinear Microwave and Millimetre-Wave Circuits (INMMIC), 2012 Workshop on
Conference_Location :
Dublin
Print_ISBN :
978-1-4673-2950-7
Electronic_ISBN :
978-1-4673-2948-4
DOI :
10.1109/INMMIC.2012.6331942
