| Autor: |
Aref, Ahmed F., Askar, AbdelRahman, Werner, Sergej, Pozdniakov, Dimitri, Kalim, Danish, Negra, Renato |
| Zdroj: |
Asia-Pacific Microwave Conference 2011; 1/ 1/2011, p127-130, 4p |
| Abstrakt: |
A multilevel output outphasing transmitter has been developed to boost efficiency considerably over regular LINC transmitter. The system consists of four identical class-E power amplifiers (PAs) in hybrid design operating at 3.3 GHz and delivering a peak output power of 40.5 dBm. By controlling the supply voltage of the four PA units a fully symmetrical multilevel outphasing behaviour can be achieved with a power added efficiency (PAE) enhancement over a range of more than 25 dB of output power back-off. By comparing system measurement results with conventional outphasing transmitter a peak PAE enhancement of 33 % points and a maximum DC power saving of 21 Watts were achieved. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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