Journal of Physics Conference Series · 2013 · 13 citations · 4 references
EngineeringElectrical EngineeringAntennasElectromagneticsMicrowave EngineeringAntenna ArraysAntenna DesignAntenna RadiationAntenna SimulationMicrowave AntennasWireless Power TransferAntenna Near-field MeasurementsArray DesignFull-wave Electromagnetic SimulationPower DensityRadiating Near FieldRadio-frequency Wireless Power TransferYagi-uda Antenna DesignYagi-uda Antennas
This paper reports the analysis, design, prototyping and first measurement results of a linear array antenna consisting of Yagi-Uda elements, rotated and phased for focusing RF power in the near-field of the antenna. By employing Near Field Focusing more power may be transmitted before the EIRP limit is reached due to the inherent far-field difusing. A design based on four Yagi-Uda array elements is able to produce an average power density of 21.04dBm/m2 at 2.45GHz in a box of 10×10×10cm3 located 1m from the linear array face. The design has been verified through comparison with full-wave electromagnetic simulations. First measurements on a realized prototype confirm the functioning of the array.
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Antenna theory, analysis, and design
W. Croswell · IRE Transactions on Telemetry and Remote Control · 1982 · 8.6K citations
Wireless Power Transfer via Strongly Coupled Magnetic Resonances
André Kurs, Aristeidis Karalis, Robert Moffatt et al. · Science · 2007 · 5.5K citations · Full text