A methodology for multi-band class E RF PA design

This paper presents a simple methodology for the design of a highly efficient PA in the context of multiradio devices. This PA belongs to the radiofrequency reconfigurable part within a transmitter. Our goal is to improve the PA efficiency over the bandwidth. The method is based on the extraction of...

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Bibliographic Details
Main Authors: Diet, A, Villegas, M, Baudoin, G, Robert, F
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
class E PA
Design methodology
Design optimization
Modulation coding
multi-radio
Optimization methods
Pulse width modulation
Radio frequency
RF architecture
Topology
Voltage
WiMAX
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Summary:This paper presents a simple methodology for the design of a highly efficient PA in the context of multiradio devices. This PA belongs to the radiofrequency reconfigurable part within a transmitter. Our goal is to improve the PA efficiency over the bandwidth. The method is based on the extraction of the transistor's non-linear output parameters and the optimisation of a given class E topology to an ideal impedance load. Herein, the method is illustrated by an integrated design using between 2 and 4 GHz and the results of the simulations (in terms of efficiency) agree well with the transient simulation and the S-Parameters optimisation. Considerations are given for the complete development of this design and the interest for future multiband front end designs.
DOI:10.1109/IMWS.2010.5440990