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Podsiadlik, Tomasz, Dooley, John, Canniff, Alan and Farrell, Ronan (2009) Pulse width modulation of multilevel delta-sigma output for class S power amplifier. In: 2009 European Conference on Circuit Theory and Design. IEEE, pp. 457-460. ISBN 9781424438969
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Abstract
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.
| Item Type: | Book Section |
|---|---|
| Additional Information: | Research presented in this paper was funded by a Centre for Telecommunications Value-Chain Research (SFI 03/CE3/I405) by Science Foundation Ireland under the National Development Plan. The authors gratefully acknowledge this support.457 |
| Keywords: | delta-sigma modulation; frequency convertors; power amplifiers; pulse width modulation; quantisation (signal); |
| Academic Unit: | Faculty of Science and Engineering > Electronic Engineering |
| Item ID: | 9666 |
| Identification Number: | 10.1109/ECCTD.2009.5275017 |
| Depositing User: | Ronan Farrell |
| Date Deposited: | 06 Jul 2018 15:07 |
| Publisher: | IEEE |
| Refereed: | Yes |
| Funders: | Science Foundation Ireland (SFI) |
| Related URLs: | |
| URI: | https://mural.maynoothuniversity.ie/id/eprint/9666 |
| Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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