Dual-Band Rectifier Design With High Efficiency Using Simple Dual Band-Stop Network for Wireless Power Transfer

This paper presents a novel structure for designing a dual-band (DB) rectifier with high efficiency and compact size for wireless power transfer. The proposed circuit employs a simple dual band-stop network cascaded by only two transmission lines (TLINs) which can yield open-circuit termination simu...

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Main Authors: Dang-An Nguyen, Yujin Choi, Chulhun Seo
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10483010/
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author Dang-An Nguyen
Yujin Choi
Chulhun Seo
author_facet Dang-An Nguyen
Yujin Choi
Chulhun Seo
author_sort Dang-An Nguyen
collection DOAJ
description This paper presents a novel structure for designing a dual-band (DB) rectifier with high efficiency and compact size for wireless power transfer. The proposed circuit employs a simple dual band-stop network cascaded by only two transmission lines (TLINs) which can yield open-circuit termination simultaneously for the second harmonics of both two separate frequency bands, enabling an efficient DB power recycling mechanism with minimum insertion loss for power conversion efficiency (PCE) enhancement. The closed-form formulas are derived to extract the TLIN parameters with a low complexity. A rectifier based on a Schottky diode model BAT15-03W is simulated and measured for verification at two target operating frequencies of 0.915 GHz and 2.45 GHz. The measured results show peak PCE of 79.2% and 77.8% observed at 0.9 GHz and 2.36 GHz, respectively. Moreover, wide dynamic range for PCE&#x003E;50% is equally recorded at both two frequencies with 17.5 dB. Also, the proposed rectifier exhibits a small electrical size of <inline-formula> <tex-math notation="LaTeX">$0.102\lambda \times 0.105\lambda $ </tex-math></inline-formula>, indicating advantages in terms of high PCE and compactness, as compared to the other similar designs.
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spelling doaj-art-cb9babe950ae4d12863f837255f2ea6c2025-08-20T02:55:49ZengIEEEIEEE Access2169-35362025-01-0113432184322310.1109/ACCESS.2024.338271810483010Dual-Band Rectifier Design With High Efficiency Using Simple Dual Band-Stop Network for Wireless Power TransferDang-An Nguyen0https://orcid.org/0000-0003-3389-8892Yujin Choi1Chulhun Seo2https://orcid.org/0000-0002-6765-8734Department of Information and Communication Convergence, Soongsil University, Seoul, South KoreaDepartment of Information and Communication Convergence, Soongsil University, Seoul, South KoreaDepartment of Information and Communication Convergence, Soongsil University, Seoul, South KoreaThis paper presents a novel structure for designing a dual-band (DB) rectifier with high efficiency and compact size for wireless power transfer. The proposed circuit employs a simple dual band-stop network cascaded by only two transmission lines (TLINs) which can yield open-circuit termination simultaneously for the second harmonics of both two separate frequency bands, enabling an efficient DB power recycling mechanism with minimum insertion loss for power conversion efficiency (PCE) enhancement. The closed-form formulas are derived to extract the TLIN parameters with a low complexity. A rectifier based on a Schottky diode model BAT15-03W is simulated and measured for verification at two target operating frequencies of 0.915 GHz and 2.45 GHz. The measured results show peak PCE of 79.2% and 77.8% observed at 0.9 GHz and 2.36 GHz, respectively. Moreover, wide dynamic range for PCE&#x003E;50% is equally recorded at both two frequencies with 17.5 dB. Also, the proposed rectifier exhibits a small electrical size of <inline-formula> <tex-math notation="LaTeX">$0.102\lambda \times 0.105\lambda $ </tex-math></inline-formula>, indicating advantages in terms of high PCE and compactness, as compared to the other similar designs.https://ieeexplore.ieee.org/document/10483010/Wireless power transferDB rectifierspower recyclingharmonic suppressionband-stop networksDB impedance matching
spellingShingle Dang-An Nguyen
Yujin Choi
Chulhun Seo
Dual-Band Rectifier Design With High Efficiency Using Simple Dual Band-Stop Network for Wireless Power Transfer
IEEE Access
Wireless power transfer
DB rectifiers
power recycling
harmonic suppression
band-stop networks
DB impedance matching
title Dual-Band Rectifier Design With High Efficiency Using Simple Dual Band-Stop Network for Wireless Power Transfer
title_full Dual-Band Rectifier Design With High Efficiency Using Simple Dual Band-Stop Network for Wireless Power Transfer
title_fullStr Dual-Band Rectifier Design With High Efficiency Using Simple Dual Band-Stop Network for Wireless Power Transfer
title_full_unstemmed Dual-Band Rectifier Design With High Efficiency Using Simple Dual Band-Stop Network for Wireless Power Transfer
title_short Dual-Band Rectifier Design With High Efficiency Using Simple Dual Band-Stop Network for Wireless Power Transfer
title_sort dual band rectifier design with high efficiency using simple dual band stop network for wireless power transfer
topic Wireless power transfer
DB rectifiers
power recycling
harmonic suppression
band-stop networks
DB impedance matching
url https://ieeexplore.ieee.org/document/10483010/
work_keys_str_mv AT dangannguyen dualbandrectifierdesignwithhighefficiencyusingsimpledualbandstopnetworkforwirelesspowertransfer
AT yujinchoi dualbandrectifierdesignwithhighefficiencyusingsimpledualbandstopnetworkforwirelesspowertransfer
AT chulhunseo dualbandrectifierdesignwithhighefficiencyusingsimpledualbandstopnetworkforwirelesspowertransfer