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This paper presents a wireless power transfer system for mobile devices. To achieve high efficiency in the receiver circuit, an optimal switching frequency is required. Through experimental analysis, we suggest the optimal efficiency of a receiver circuit. The switching frequency of this receiver circuit can vary from 500 kHz to 13.56 MHz. The received power has a range of 0 to 5 W, and it has a maximum...
A 3D integration custom stack system utilizing a local wireless interconnect (LWI) and a global wireless interconnect (GWI) is proposed. The LWI transfers Gb/s pulses using resonant coupling of spiral inductors with low-power dissipation of several mW. The GWI transfers global clocks and data on a 20 GHz signal using on-chip antennas.
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