Supply-terminal 40 MHz BW characterization of impedance-like nonlinear functions for envelope tracking PAs

Supply-terminal 40 MHz BW characterization of impedance-like nonlinear functions for envelope tracking PAs
复制标题

用于包络跟踪 PA 的类阻抗非线性函数的电源终端 40 MHz 带宽表征

DOI:
--
复制
发表时间:
2016
期刊:
ARFTG Microwave Measurement Conference
影响因子:
--
通讯作者:
A. Santarelli
A. Santarelli
中科院分区:
--
文献类型:
--
作者:
G. P. Gibiino;Julien Couvidat;G. Avolio;D. Schreurs;A. Santarelli

文献摘要

被引文献

相似文献

我们提出了一种方法的动态特性的非理想性所产生的包络跟踪(ET)系统时,无论是射频(RF)功率放大器(PA)或电源调制器(SM)被驱动到非线性操作。通过修改后的沃尔泰拉公式推导出的类阻抗非线性函数,在这里介绍和测量超过40 MHz带宽(BW)的电源端子,允许更好地预测SM-PA接口的动态电压和电流。
We present an approach for the dynamic characterization of the non-idealities arising in envelope tracking (ET) systems when either the radio-frequency (RF) power amplifier (PA) or the supply modulator (SM) are driven into nonlinear operation. Impedance-like nonlinear functions, derived through a modified Volterra formulation, are here introduced and measured at the supply terminal over 40 MHz bandwidth (BW), allowing better predictions of the dynamic voltage and current at the SM-PA interface.