| Presentation | 2017-01-19 Revisiting kQ-product Theory for Wireless Power Transfer Ikuo Awai, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The maximum condition of power transfer efficiency for a linear reciprocal 4-terminal circuit is obtained directly from the dissipation power of the load. The result coincides with that for the load side derived by the conjugate matching theory, without demanding anything to the source side. Since it is clarified that the efficiency is maximized even when the primary resonator in the source side does not resonate at the same frequency with that in the load side, the intentional inductive detuning of the input impedance for the improvement of source efficiency is also justified in terms of transfer efficiency. The maximum value for the power transfer is calculated by substituting the maximum condition into the ratio or dissipation in the load to the incident power, and it is given by the same equation as before. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless power transfer / Maximum transfer efficiency / kQ-product theory / Reciprocal linear 4-port circuit / Dissipation in load, / Incident power |
| Paper # | WPT2016-44 |
| Date of Issue | 2017-01-12 (WPT) |
| Conference Information | |
| Committee | AP / WPT |
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| Conference Date | 2017/1/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hiroshima Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless transmission technology, Radio propagation, Antennas and Propagation |
| Chair | Keizo Cho(Chiba Inst. of Tech.) / Chenq Kiyou(Tohoku Univ.) |
| Vice Chair | Hisato Iwai(Doshisha Univ.) |
| Secretary | Hisato Iwai(Niigata Univ.) / (NTT DoCoMo) |
| Assistant | Nobuyasu Takemura(Nippon Inst. of Tech.) / Satoshi Yamaguchi(Mitsubishi Electric) / Tsunayuki Yamamoto(Yamaguchi Univ.) / Takehiro Imura(Univ. of Tokyo) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Wireless Power Transfer |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Revisiting kQ-product Theory for Wireless Power Transfer |
| Sub Title (in English) | Derivation from ratio of dissipation to incident power |
| Keyword(1) | Wireless power transfer |
| Keyword(2) | Maximum transfer efficiency |
| Keyword(3) | kQ-product theory |
| Keyword(4) | Reciprocal linear 4-port circuit |
| Keyword(5) | Dissipation in load, |
| Keyword(6) | Incident power |
| 1st Author's Name | Ikuo Awai |
| 1st Author's Affiliation | Ryutech Corporation(Ryutech) |
| Date | 2017-01-19 |
| Paper # | WPT2016-44 |
| Volume (vol) | vol.116 |
| Number (no) | WPT-398 |
| Page | pp.pp.11-16(WPT), |
| #Pages | 6 |
| Date of Issue | 2017-01-12 (WPT) |