Conference Publication Details
Mandatory Fields
Podsiadlik T.;Dooley J.;Canniff A.;Farrell R.
ECCTD 2009 - European Conference on Circuit Theory and Design Conference Program
Pulse width modulation of multilevel delta-sigma output for class S power amplifier
2009
December
Published
1
()
Optional Fields
457
460
In this paper a platform that implements the digital processing and RF carrier generation for class S PA operation is presented. This implementation consists of a bandpass delta sigma modulator (DSM) with a multi-level quantizer followed by a pulse width modulator and frequency upconversion stage. The principle of operation is described and validation is provided through simulation and experimental measurements on a prototype of the modulator. It is shown that the output from the new modulator can achieve significant improvements in SNR performance compared to a two level DSM with little added computational overhead. ©2009 IEEE.
10.1109/ECCTD.2009.5275017
Grant Details