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Content Provider | IET Digital Library |
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Author | Song, Seong Kyu Malik, Jagannath Ko, Nak Young Park, Woo Jin Seo, Seok Tae Lee, Bon Young Oruganti, Sai Kiran Sharma Kim, Hak Sun Bien, Franklin |
Abstract | A key limitation inherent in wireless power transmission (WPT) systems using coils is a high sensitivity to the alignment between the transmitting and receiving coils. Moreover, the physical separation of the transmitting and receiving coils or any metallic barrier between them can notably reduce the efficiency. To overcome these limitations, a practical WPT system that is insensitive to the alignment between coils and metallic obstacles is proposed. It uses a printed circuit board-type antenna fabricated by reducing the structure of an antenna used in previous research and is designed to resonate at the target frequency through impedance matching. The proposed system uses surface-guided-mode resonance at the metal–air interface and transmits uniform power within 1.3 m. In addition, the proposed system satisfies the electromagnetic field international standard that is the electric field and magnetic field reference values are 152.5 V/m and 0.4 A/m, respectively at 4 MHz. |
Starting Page | 1826 |
Ending Page | 1831 |
Page Count | 6 |
ISSN | 17518725 |
Volume Number | 13 |
e-ISSN | 17518733 |
Issue Number | Issue 11, Sep (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/13/11 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5286 |
Journal | IET Microwaves, Antennas & Propagation |
Publisher Date | 2019-05-20 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Alignment Antenna Coils Current 0.4 A Electric Field Electromagnetic Field Electromagnetic Field International Standard Frequency 4.0 MHz Impedance Matching Inductive Power Transmission Magnetic Field Metallic Barrier Metallic-obstacle-insensitive Contactless Power Transmission System Metal–air Interface Physical Separation Practical WPT System Printed Circuit Printed Circuit Board-type Antenna Receiving Coils Single Antenna Size 1.3 M Surface-guided Mode Surface-guided-mode Resonance Transmitting Coils Uniform Power Transmission Voltage 152.5 V Wireless Power Transmission System |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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