A Cartesian Sigma-Delta transmitter architecture
| Autor: | Martine Villegas, Genevieve Baudoin, Martha Liliana Suarez Penaloza |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Physics
business.industry Amplifier Bandwidth (signal processing) Transmitter Electrical engineering Linearity Data_CODINGANDINFORMATIONTHEORY Transmitter power output Delta-sigma modulation Computer Science::Hardware Architecture Hardware_GENERAL Baseband Electronic engineering business Electrical efficiency Computer Science::Information Theory |
| Zdroj: | 2009 IEEE Radio and Wireless Symposium. |
| Popis: | This paper proposes a transmitter architecture that enables high Peak to Average Power Ratio (PAPR) signals transmission with good linearity and efficiency. The architecture is based on the principle of transforming a non constant envelope modulated signal in a constant one using lowpass Sigma-Delta (S?) modulators on the In-Phase and Quadrature baseband signal components. This conversion enables the use of a switched mode power amplifier which increases the transmitter power efficiency. Cartesian ΣΔ architecture performances have been studied and compared to those obtained with a Polar Sigma Delta transmitter architecture. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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