High efficiency wideband envelope tracking power amplifier with direct current sensing for LTE applications
High efficiency wideband envelope tracking power amplifier with direct current sensing for LTE applications
复制标题
适用于 LTE 应用的具有直接电流感应功能的高效宽带包络跟踪功率放大器
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Lawrence E. Larson
中科院分区：
文献类型：
--
作者：
M. Kwak;Jinseong Jeong;Muhammad Hassan;Jomei J. Yan;D. Kimball;Peter M. Asbeck;Lawrence E. Larson
提出了一种适用于LTE的高效率宽带包络跟踪功率放大器。对于5 MHz的LTE信号，采用直接电流检测的CMOS包络放大器的测量平均效率为78%。该包络跟踪功率放大器包括一个GaAsHBT射频级，其总功率附加效率(PAE)大于46%，平均LTE输出功率为27.6dBm，增益为26.5dBm。
A high efficiency wideband envelope tracking power amplifier for LTE applications is presented. The CMOS envelope amplifier with direct current sensing has a measured average efficiency of 78% with a 5 MHz LTE signal. The envelope tracking power amplifier including a GaAs HBT RF stage has overall power added efficiency (PAE) above 46% with an average LTE output power of 27.6 dBm and a gain of 26.5 dB.