標題: | A Design of 2.6 GHz Auto-Biasing Cascode Class-E PA with V(dd)/AM and V(dd)/PM Compensations in EER System |
作者: | Tsou, Wen-An Wuen, Wen-Shen Wen, Kuei-Ann 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
關鍵字: | Trnsmitters;class-E power amplifier;envelope elimination and restoration (EER) |
公開日期: | 2009 |
摘要: | An auto-biasing cascode class-E PA which can compensate the V(dd)/AM and V(dd)/PM distortion resulting from supply modulation has been proposed. The output voltage of auto-biasing control circuit is generated and varied linearly with PA's supply voltage so that the cascode transistor is degenerated into a resistance and the PA's nonlinear distortion can be compensated. The simulation result shows that the distortion is compensated evidently and the system co-simulation demonstrated that system EVM can be improved from -17 to -19dB. Also, the drain efficiency of the PA can be improved 15% within small supply voltage range. |
URI: | http://hdl.handle.net/11536/16999 http://dx.doi.org/10.1109/PACCS.2009.109 |
ISBN: | 978-0-7695-3614-9 |
DOI: | 10.1109/PACCS.2009.109 |
期刊: | PROCEEDINGS OF THE 2009 PACIFIC-ASIA CONFERENCE ON CIRCUITS, COMMUNICATIONS AND SYSTEM |
起始頁: | 47 |
結束頁: | 50 |
顯示於類別: | 會議論文 |