A 2.4-GHz CMOS Efficiency-Enhanced Rectifier With a Differential-Feed Patch Antenna

被引：2
|
作者：
Huang, Zhi-Yong [1 ,2 ,3 ]
Chen, Yi-Jan Emery [1 ,2 ,3 ]
机构：
[1] Natl Taiwan Univ, Grad Inst Elect Engn, Taipei 10617, Taiwan
[2] Natl Taiwan Univ, Grad Inst Commun Engn, Taipei 10617, Taiwan
[3] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan
来源：
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS | 2024年 / 34卷 / 02期
关键词：
Rectifiers; Radio frequency; Patch antennas; Wireless communication; Wireless sensor networks; Baluns; Antenna measurements; Energy harvest; Internet of Things; RF rectifier; wireless power transfer (WPT); wireless sensor; DESIGN;
D O I：
10.1109/LMWT.2023.3342009
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter presents the codesign of a 2.4-GHz CMOS rectifier and an antenna for efficiency enhancement at low input power. The RF differential-driven rectifier architecture is used to lower the driving voltage required to turn on the transistors. The high-resistance feedback path with an offset voltage is added to the rectifier circuit to reduce the reverse leakage current for efficiency enhancement. The rectifier is connected directly to the differential-feed antenna to eliminate the need and loss of a balun. The measured power conversion efficiency (PCE) of the rectifier achieves 63% at the input power of - 8 dBm.
引用
收藏
页码：229 / 232
页数：4
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