← 返回 JSSC 论文列表JSSC 2010第10期RF & Wireless0.35μm
High Efficiency WCDMA Power Amplifier With Pulsed Load Modulation (PLM) Shu-Hsien Liao and Y uanxun
本文提出了一种基于脉冲负载调制（PLM）的高效WCDMA功率放大器，显著提升了功率效率。
1.87 GHz, 0.35μm GaAs pHEMT, 43% PAE（含滤波器损耗）, 52.6% PAE（去嵌入滤波器损耗）
开关谐振器非恒定包络调制脉冲负载调制包络Delta-Sigma调制WCDMA
▸脉冲负载调制（PLM）技术
▸开关谐振器的时变行为
▸包络Delta-Sigma调制（EDSM）架构
Abstract
IEEE
Abstract—Complex non-constant-envelope modulations are
often used in wireless communications. A power amplifier (PA)
is developed based on the concept of pulsed load modulation
(PLM) that can enhance the power efficiency of the PA when the
output power is back off from the peak due to modulations. The
PLM technique utilizes the time-varying behavior of switched
resonators to form an optimal, power dependent load impedance.
The switched resonator consists of a balanced pair of switching
mode