A Polar Delta-Sigma Modulation (PDSM) Scheme for High Efficiency Wireless Transmitters

A Polar Delta-Sigma Modulation (PDSM) Scheme for High Efficiency Wireless Transmitters

A novel polar delta-sigma modulation (PDSM) architecture that is suited for polar transmitters is proposed. The PDSM solves the noise convolution problem of existing envelope Delta-Sigma modulation techniques and it can provide robust in-band signal to noise performance with a moderate oversampling...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jinseong Jeong, Wang, Y.E.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Band pass filters
Delta-sigma modulation
Power amplifiers
Pulse amplifiers
Quantization
Radio frequency
Radiofrequency amplifiers
Signal to noise ratio
Switches
Transmitters
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Beschreibung
Zusammenfassung:A novel polar delta-sigma modulation (PDSM) architecture that is suited for polar transmitters is proposed. The PDSM solves the noise convolution problem of existing envelope Delta-Sigma modulation techniques and it can provide robust in-band signal to noise performance with a moderate oversampling rate. The approach is expected find applications in high efficiency polar transmitters. Simulations with WCDMA downlink waveforms has validated the proposed concept.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2007.380257