A Compact and High-Efficiency 0.915/2.45/5.8 GHz Triple-Band Rectifier With Harmonic Suppression Based on Coupled Transmission Line

In this brief, for the first time, a novel methodology for designing a compact and high-efficiency triple-band (TB) rectifier is presented for wireless power transfer (WPT) and energy harvesting (EH) at industrial, medical, and scientific (IMS) bands, i.e., 0.915 GHz, 2.45 GHz, and 5.8 GHz. Specific...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2024-07, Vol.71 (7), p.3553-3557
Main Authors: Nam, Hyungseok, Bui, Gia Thang, Nguyen, Dang-An, Seo, Chulhun
Format: Article
Language:English
Subjects:
coupled transmission line
Effectiveness
Efficiency
Energy conversion efficiency
Energy harvesting
Harmonic analysis
harmonic suppression
Impedance
Mathematical models
Rectifiers
Recycling
Schottky diodes
TB rectifier
Transformers
Transmission lines
Wireless power transmission
WPT
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this brief, for the first time, a novel methodology for designing a compact and high-efficiency triple-band (TB) rectifier is presented for wireless power transfer (WPT) and energy harvesting (EH) at industrial, medical, and scientific (IMS) bands, i.e., 0.915 GHz, 2.45 GHz, and 5.8 GHz. Specifically, the proposed structure uses a coupled transmission line (CTL) connected in shunt at the diode anode to suppress the second harmonic of three frequencies concurrently while adopting well with a TB fundamental matching network, enabling an efficient TB power recycling mechanism for efficiency enhancement with a miniature size. The CTL operation is investigated in the closed-form equations. For validation, a Schottky diode-based rectifier is simulated, fabricated, and measured. The experimental results show that peak power conversion efficiency (PCE) is achieved at 79.97~\% , 74.58~\% , and 73.62~\% for 0.895 GHz, 2.37 GHz, and 5.57 GHz, respectively. Moreover, the 50~\% over PCE remains within a wide dynamic range of 18.5 dB at 0.895 GHz, 17 dB at 2.37 GHz and 17.5 dB at 5.57 GHz. Compared to other works, the proposed rectifier exhibits advantages of high PCE and compactness.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2024.3366594