Wireless data and power transfer in 3-D integration

This paper proposes a new scheme for achieving power and data simultaneous transmission. Data is transferred through parasitic capacitances between the coupling coils at a high frequency, while power is transferred through inductive coupling coils at a low frequency. Firstly, topology structure of the proposed concurrent data and power transfer links is introduced. Secondly, the capability of data transfer and the interference of power on data transfer are analyzed. Simulation results show the system has excellent SNR performance, offset tolerance performance and small time delay. Finally, a 1.26W, 200Kbps simulation model is achieved.