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| Content Provider | Springer Nature Link |
|---|---|
| Author | Iida, M. Sanada, Y. |
| Copyright Year | 2016 |
| Abstract | Magnetic resonance wireless power transfer is expected to be one of the prevalent schemes because of its high efficiency and long transmission range. However, in this scheme, there is a problem that the characteristics of a transmission channel changes in according with the distance between coil antennas. This paper investigates the performance of data transmission with an array antenna in a wireless power transfer system. In the assumed system, the same antennas for wireless power transfer are used for data transmission. The assumed system uses multiple transmit antennas and beamforming is realized by shifting the phases of signals in a transmitter. Numerical results obtained through computer simulation show that the proposed scheme can mitigate the dependently of a bit error rate (BER) to the distance between the antenna coils. The variation of the performance is suppressed within 1–3 dB at the BER of $$10^{-5}$$ in the case of two transmit antennas. In addition, the system with two transmit antennas achieves 2 dB or more improvement in term of the BER performance than that with a single antenna at specific antenna distances. |
| Starting Page | 19 |
| Ending Page | 27 |
| Page Count | 9 |
| File Format | |
| ISSN | 10689605 |
| Journal | International Journal of Wireless Information Networks |
| Volume Number | 23 |
| Issue Number | 1 |
| e-ISSN | 15728129 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2016-02-16 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Wireless power transfer Array antenna Antenna position Coupling coefficient Electrical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Networks and Communications Electrical and Electronic Engineering Hardware and Architecture |
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