Abstract
This paper presents a reconfigurable hybrid Radio Frequency (RF) rectifier designed to efficiently convert AC RF power to DC voltages for an energy harvesting system. The proposed reconfigurable rectifier adopts the advantage of low conduction loss in the switch-connected rectifier and low reverse current loss in the diode-connection rectifier topology to enhance its power conversion efficiency (PCE). Capable of reconfiguring into different rectifier topologies, the proposed circuit can reconfigure into a switch-based cross-coupling differential drive (CCDD) at low input power and a diode-based hybrid rectifier at higher input power for a wide dynamic range operation. Designed and implemented on a CMOS 65 nm technology, the post-layout result records a peak PCE of 88.7% and a wide PCE dynamic range (PDR) of 16 dBm for PCE >40%. The proposed circuit also demonstrates a −21 dBm sensitivity output across a 1 MΩ output load.
Funder
Collaborative Research in Engineering, Science and Technology Center (CREST) Program
Subject
Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering
Reference23 articles.
1. Luo, Y., Pu, L., Wang, G., and Zhao, Y. (2019). RF Energy Harvesting Wireless Communications: RF Environment, Device Hardware and Practical Issues. Sensors, 19.
2. Low Voltage Switched-Capacitive-Based Reconfigurable Charge Pumps for Energy Harvesting Systems: An Overview;Ho;IEEE Access,2022
3. An RF-to-DC Rectifier With High Efficiency Over Wide Input Power Range for RF Energy Harvesting Applications;Saffari;IEEE Trans. Circuits Syst. I Regul. Pap.,2019
4. Basim, M., Khan, D., Ain, Q.U., Shehzad, K., Shah, S.A.A., Jang, B.-G., Pu, Y.-G., Yoo, J.-M., Kim, J.-T., and Lee, K.-Y. (2022). A Highly Efficient RF-DC Converter for Energy Harvesting Applications Using a Threshold Voltage Cancellation Scheme. Sensors, 22.
5. A Wide-PCE-Dynamic-Range CMOS Cross-Coupled Differential-Drive Rectifier for Ambient RF Energy Harvesting;Chong;IEEE Trans. Circuits Syst. II Express Briefs,2021
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献