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Design of high efficiency RF‐DC conversion circuit using novel termination networks for RF energy harvesting system
Author(s) -
Chaudhary Girdhari,
Kim Phirun,
Jeong Yongchae,
Yoon JaeHun
Publication year - 2012
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.27087
Subject(s) - voltage doubler , radio frequency , electrical engineering , energy conversion efficiency , microwave , schottky diode , rectenna , voltage , engineering , electronic engineering , energy harvesting , diode , power (physics) , telecommunications , physics , voltage regulator , rectification , dropout voltage , quantum mechanics
In this letter, a high efficiency RF‐DC conversion circuit for RF energy harvesting system (EHS) is proposed.The proposed circuit consists of Villard voltage doubler, the input and output termination networks which can suppress the unwanted RF signals produced by Schottky diodes. The fabricated circuit operating at 2.45 GHz has a maximum RF‐DC conversion efficiency of 83.37% and output voltage of 11.30 V at an input RF power of 140 mW. The proposed circuit has an advantage of simple design which helps to reduce the design cost of EHSs. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2330–2335, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27087