厦门大学学报（自然科学版）2012，Vol.51Issue(2)：179-184,6.
一种新的RF预失真方案的设计与仿真
Design and Simulation of a New RF Predistortion Circuit
摘要
Abstract
According to the predistortion theory and cancellation method,an improved program of predistortion circuit is put forward, which includes the third-order and the fifth-order intermodulation-component's predistortion circuit. Finally, take the power amplifier device of Polyfet company's memory effect as an example,analyzing and comparing the power's performance between unpre-distortion circuit and predistortion circuit, which tests the improvement level of distortion's component. The third-order intermodula-tion-supression is improved 20. 5 dB. Meanwhile, the fifth-order intermodulation-supression is improved 3. 8 dB. The third-order in-termodulation-supression is improved 3. 2 dB than conventional scheme, the fifth-order intermodulation-supression is improved 5. 8 dB than conventional scheme.关键词
峰均比/预失真/互调失真/记忆效应Key words
peak-to-average power ratio/predistortion/intermodulation distortion/memory effect分类
信息技术与安全科学引用本文复制引用
马中华,欧阳军,柯友艺,陈红霞,陈大灿..一种新的RF预失真方案的设计与仿真[J].厦门大学学报（自然科学版）,2012,51(2):179-184,6.基金项目
国家自然科学基金项目(60803078) （60803078）
福建省教育厅科技项目(JB11096) （JB11096）
