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This paper proposes a wireless power transfer system that consists of a transmitter with a resonator and a receiver without a resonator. This system utilizes magnetic coupling and resonance. The receiver is simple, but this system has longer transfer distance than electromagnetic induction and requires no resonant frequency synchronization between the transmitter and the receiver that is required...
SF6 gas has been widely used in high voltage power equipment (HVPE) because of its high insulating and arc-quenching performance. However, the reduction of use of SF6 is highly required, because SF6 is a potent greenhouse gas. Thus, the improvement of SF6 gas insulation system is indispensable in order to further downsize HVPEs with reduced SF6 usage. In this work, we applied a dielectric coating...
This paper describes an attempt to develop extremely wideband multi-mode surface acoustic wave (MMS) filters in GHz range. The Cu-grating/15??YX-LiNbO3 (15-LN)-substrate structure is employed. First, a design tool developed for the present purpose is detailed. Precise simulation is performed using a modified coupling-of-modes (COM) model, where the coupling between propagating surface and bulk acoustic...
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