高技术通讯(英文版)2007,Vol.13Issue(4):390-394,5.
Study on Volterra-Laguerre behavioral model for RF power amplifier
Study on Volterra-Laguerre behavioral model for RF power amplifier
摘要
Abstract
Volterra series behavioral model for radio frequency(RF)power amplifier(PA)has been widely used in system-level simulation,however,high computational complexity makes this kind of model limited to"weak"nonlinearity.In order to reduce the computational complexity and the number of coefficients of Volterra series kernels,a Volterra series improved behavioral model based on Lasuerre orthogonal polynomials function,namely Volterra-Laguerre behavioral model,is proposed.Mathematical expressions of Volterra-Laguerre behavioral model is derived.and accuracy of the model is verified through comparison of measured and simulation output data from a freescale PA using MRF21030 transistor.Mathematical analysis and simulation results show that Volterra-Laguerre behavioral model has a simple structure,much less coefficients and better modeling performance than general Volterra series model.The model can be used more correctly for system-level simulation of RF PA with wideband signal.关键词
Volterra series,laguerre orthogonal function,RF power amplifier,behavioral modelKey words
Volterra series,laguerre orthogonal function,RF power amplifier,behavioral model分类
信息技术与安全科学引用本文复制引用
Nan Jingchang,Liu Yuanan,Tang Bihua..Study on Volterra-Laguerre behavioral model for RF power amplifier[J].高技术通讯(英文版),2007,13(4):390-394,5.基金项目
Supportad by the National Natural Science Foundation of China(No.60573111). (No.60573111)