一种新型的高效率RF-DC整流器设计

Design of a Novel RF-DC Rectifier with High Efficiency

设计了一款能产生高输出电压的新型交叉耦合RF-DC整流器。为了最大化输出电压,该整流器在每个充电路径中仅经过一个MOS开关管,降低了串联损耗。采用SMIC 0.18μm双阱CMOS工艺仿真模型模拟,在输入射频功率-13.52dBm时,输出电压为1.66V,转换效率达62%。

A novel high-voltage output cross-coupled RC-DC rectifier was designed. In the new architecture, when the charging packets traveled from one coupling capacitor to the next one, only one MOS transistor was passed through instead of two complementary transistors. So the series loss was reduced, and the output voltage was improved much higher than the traditional rectifier. The proposed rectifier had been simulated in SMIC 0. 18 9m double-well CMOS process. The rectifier could deliver a l. 66 V dc output voltage with a small input RF power of --13.52 dBm, and the power conversion efficiency could reach 62 %.