Transmitting and Receiving Power-Control Architecture with Beam-Forming Technique for 2D Wireless Power Transmission Systems
A two-dimensional (2D) wireless power transmission (WPT) system that handles a wide range of transmitted and received power is proposed and evaluated. A transmitter outputs the power to an arbitrary position on a 2D waveguide sheet by using a beam-forming technique. The 2D waveguide sheet does not r...
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| Veröffentlicht in: | IEICE transactions on fundamentals of electronics, communications and computer sciences communications and computer sciences, 2014-01, Vol.E97.A (12), p.2618-2624 |
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| container_title | IEICE transactions on fundamentals of electronics, communications and computer sciences |
| container_volume | E97.A |
| creator | Terada, Takahide Shinoda, Hiroshi |
| description | A two-dimensional (2D) wireless power transmission (WPT) system that handles a wide range of transmitted and received power is proposed and evaluated. A transmitter outputs the power to an arbitrary position on a 2D waveguide sheet by using a beam-forming technique. The 2D waveguide sheet does not require an absorber on its edge. The minimum propagation power on the sheet is increased 18 times by using the beam-forming technique. Power amplifier (PA) efficiency was improved from 19% to 46% when the output power was 10dB smaller than peak power due to the use of a PA supply-voltage and input power control method. Peak PA efficiency was 60%. A receiver inputs a wide range of power levels and drives various load impedances with a parallel rectifier. This rectifier enables a number of rectifying units to be tuned dynamically. The rectifier efficiency was improved 1.5 times while input power range was expanded by 6dB and the load-impedance range was expanded fourfold. The rectifier efficiency was 66-73% over an input power range of 18-36dBm at load impedances of 100 and 400 Omega . |
| doi_str_mv | 10.1587/transfun.E97.A.2618 |
| format | Article |
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| ispartof | IEICE transactions on fundamentals of electronics, communications and computer sciences, 2014-01, Vol.E97.A (12), p.2618-2624 |
| issn | 0916-8508 1745-1337 |
| language | jpn |
| recordid | cdi_proquest_miscellaneous_1651388560 |
| source | J-STAGE Free |
| subjects | Power control Receivers Receiving Rectifiers Transmission Two dimensional Waveguides Wireless power transmission |
| title | Transmitting and Receiving Power-Control Architecture with Beam-Forming Technique for 2D Wireless Power Transmission Systems |
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