Design of Highly-Efficient Wideband RF Polar Transmitters Using Envelope-Tracking (ET) for Mobile WiMAX/Wibro Applications

摘要：

This paper discusses both circuits and system design aspects of highly-efficient wideband RF polar transmitters for mobile WiMAX/Wibro applications using an open-loop envelope tracking (ET) technique. The design of linear-assisted switching envelope amplifier and monolithic siGe class-E power amplifier (PA) is discussed,while the sPICE simulation results are compared with the measurement data.WiMAX/Wibro circuit and system co-design that include RF circuits and digital DSP blocks co-simulations suggest that the entire highly integrated ET-based transmit (TX) system can meet the stringent 802.16e mobile-WiMAX TX mask with 64QAM modulation and reach-33% peak system efficiency.

关键词： Polar Transmitter mobile WiMAX Envelope-Tracking (ET) Envelope-Elimination-and-Restoration (EER) SiGe Power Amplifier(PA)

作者: Donald Y.C.Lie Yan Li Jerry Lopez Stanley Wu Tzu-Yin Yang

作者单位: Department of Electrical & Computer Engineering,Texas Tech University,Lubbock,TX 79401,USA SoC Technology Center,The Industrial Technology Research Institute (ITRI),Hsin-Chu,Taiwan,Republic o

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 347-350

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）