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引用次数: 8
摘要
介绍了一种用于无线遥测应用的2.4 GHz全波交直流整流器。使用二极管连接MOS晶体管的传统全波整流器由于固有阈值电压而遭受功率损耗。本文提出了一种采用变压器的全波整流器，以提高整流效率。采用中阈值电压的MOS晶体管，采用0.18 μ m CMOS工艺制备了该器件。在输入功率为6dbm ~ 12dbm范围内，与传统整流器相比，该整流器的效率提高了2.5%。
A 2.4GHz Efficiency-Enhanced Rectifier for Wireless Telemetry
A 2.4 GHz full-wave AC-to-DC rectifier for wireless telemetry applications is presented. A conventional full-wave rectifier using diode-connected MOS transistors suffers from the power loss due to the intrinsic threshold voltage. In this paper, a full-wave rectifier using a transformer is presented to improve the efficiency. It has been fabricated by using the MOS transistors with medium threshold voltages in 0.18 mum CMOS process. When input power ranges from 6 dBm~12 dBm, this proposed 2.4 GHz full-wave rectifier improves the efficiency of 2.5%, compared with the conventional one.
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