Fundamental Aspects of Near-Field Coupling Small Antennas for Wireless Power Transfer
A physical limitation on the power transfer efficiency between two electrically small antennas in the near-field range is presented. By using a Z-parameter which describes the interaction between two antennas for spherical modes in connection with antenna parameters, the maximum power transfer effic...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2010-11, Vol.58 (11), p.3442-3449 |
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| container_title | IEEE transactions on antennas and propagation |
| container_volume | 58 |
| creator | LEE, Jaechun NAM, Sangwook |
| description | A physical limitation on the power transfer efficiency between two electrically small antennas in the near-field range is presented. By using a Z-parameter which describes the interaction between two antennas for spherical modes in connection with antenna parameters, the maximum power transfer efficiency and the optimum load impedance are shown as functions of the distance between two antennas, the radiation efficiency and the input impedance of the isolated antenna. The theory is verified by a simulation with a small helical antenna, which generates and modes, simultaneously. |
| doi_str_mv | 10.1109/TAP.2010.2071330 |
| format | Article |
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By using a Z-parameter which describes the interaction between two antennas for spherical modes in connection with antenna parameters, the maximum power transfer efficiency and the optimum load impedance are shown as functions of the distance between two antennas, the radiation efficiency and the input impedance of the isolated antenna. The theory is verified by a simulation with a small helical antenna, which generates and modes, simultaneously.</description><identifier>ISSN: 0018-926X</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/TAP.2010.2071330</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Antenna efficiency ; Antenna theory ; Antennas ; Applied sciences ; Couplings ; Electromagnetic coupling ; Exact sciences and technology ; Helical antennas ; Impedance ; Joining ; Joints ; Loaded antennas ; near fields ; Optimization ; Power transfer ; Radiocommunications ; Scattering parameters ; Simulation ; Telecommunications ; Telecommunications and information theory</subject><ispartof>IEEE transactions on antennas and propagation, 2010-11, Vol.58 (11), p.3442-3449</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The theory is verified by a simulation with a small helical antenna, which generates and modes, simultaneously.</description><subject>Antenna efficiency</subject><subject>Antenna theory</subject><subject>Antennas</subject><subject>Applied sciences</subject><subject>Couplings</subject><subject>Electromagnetic coupling</subject><subject>Exact sciences and technology</subject><subject>Helical antennas</subject><subject>Impedance</subject><subject>Joining</subject><subject>Joints</subject><subject>Loaded antennas</subject><subject>near fields</subject><subject>Optimization</subject><subject>Power transfer</subject><subject>Radiocommunications</subject><subject>Scattering parameters</subject><subject>Simulation</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE1Lw0AQhoMoWKt3wcuCiKfU_UqyeyzFqlC0YEVvYbOZlZTNpu4miP_eDS0ePA3DPPPO8CTJJcEzQrC828zXM4pjR3FBGMNHyYRkmUgppeQ4mWBMRCpp_nGanIWwjS0XnE-St-XgatWC65VF87AD3QfUGfQMyqfLBmyNFt2ws437RK-tshFyPTinAjKdR--NBwshoHX3DR5tvHLBgD9PToyyAS4OdRrv3G8Wj-nq5eFpMV-lmhPZp1Rzzov4C6OGKsCSYU51TjHPc61yUhEMpK4gF7ioZE2MoIYXVU5BZMJozKbJ7T5357uvAUJftk3QYK1y0A2hFFzGKClkJK__kdtu8C4-VxLMRhsZoZHCe0r7LgQPptz5plX-J0LlqLmMmstRc3nQHFduDsEqaGVNNKCb8LdHGRMFlSN3tecaAPgbZ1kmWUbYL2iqg6k</recordid><startdate>20101101</startdate><enddate>20101101</enddate><creator>LEE, Jaechun</creator><creator>NAM, Sangwook</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| ispartof | IEEE transactions on antennas and propagation, 2010-11, Vol.58 (11), p.3442-3449 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Antenna efficiency Antenna theory Antennas Applied sciences Couplings Electromagnetic coupling Exact sciences and technology Helical antennas Impedance Joining Joints Loaded antennas near fields Optimization Power transfer Radiocommunications Scattering parameters Simulation Telecommunications Telecommunications and information theory |
| title | Fundamental Aspects of Near-Field Coupling Small Antennas for Wireless Power Transfer |
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