An Analog Predistorter with Dual Ring for WCDMA Repeater Amplifier

摘要：

This paper presents the design of a predistorter which can be used to improve the linearity of power amplifier working on WCDMA band. For effectively suppress the spectrum regrowthInthe adjacent channels,A dual rings predistorter with which the intermodulation distortion (IMD) can be adjusted independently is designed. With the help of the predistorter,ACLR is improved 10 for the cases of one-carrier WCDMA applications. The predistortion power amplifier with dual rings deliversA Pout of 37.02 dBm with an ACLR of -51 dBc. For two-carrier WCDMA applications,the ACLR also been ameliorated 8.5 dB.

关键词： Adjacent channel leakage power ratio(ACLR) 3dB coupler Intermodulation distortion (IMD) Power Amplifier Predistorter

作者: Jing-Fu Bao Jia-Hong Qi Jin-fu Huang

作者单位: School of EE,University of Electronic Science and Technology of China

会议类型: 国际会议

会议名称: 2008 International Conference on Microwave and Millimeter Wave Technology(2008国际微波毫米波技术会议)

会议地点: 南京

会议语种:英文

页码: 127-130

在线出版日期: 2008-04-21（万方平台首次上网日期，不代表论文的发表时间）