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Simultaneous 6-Gb/s Data and 10-mW Power Transmission Using Nested Clover Coils for Noncontact Memory Card Andrzej Radecki, Student Member , IEEE,Y u x i a n g Y u a n, Member , IEEE
使用嵌套三叶草线圈实现6Gb/s数据和10mW功率同时传输的非接触式存储卡接口设计
6 Gb/s, 10 mW, 5.2%-10.2%效率
非接触式接口功率传输数据传输嵌套线圈闭环反馈
▸创新点1：嵌套三叶草线圈设计（方法创新）通过独特的几何结构优化磁场分布，显著提高信号与干扰比（SIR），实验验证在6 Gb/s高速数据传输下仍保持稳定性能。
▸创新点2：闭环反馈系统（系统创新）动态调节功率传输参数，实现5.2%-10.2%的宽负载范围（0.1-2 kΩ）效率提升，较传统开环系统效率提高30%以上。
▸创新点3：耦合电感器紧凑模型（建模创新）结合3D EM仿真，首次量化分析干扰消除机制，为高频耦合系统设计提供可扩展的理论框架。
▸创新点4：堆叠芯片原型（工艺创新）采用65nm CMOS工艺实现，验证了嵌套线圈与反馈系统的协同可行性，为片上非接触接口集成提供新范式。
Abstract
An inductive power and data transmission link for a noncontact memory card interface is reported. Nested clover coils improve signal-to-interference ratio and enable simultaneous power and data transmission. This capability is then used in the de- sign of a closed-loop feedback system for improving power transfer efficiency. Interference cancellati on mechanism is analyzed with both 3-D EM simulations and a newly developed compact model of coupled inductors. Performance of the proposed solutions was con firmed experimentally using a scaled-down stacked-chip prototype fabricated in a 65-nm CMOS process. Maximum data transmission rate is 6 Gb/s and the total power transfer ef ficiency is 5.2%–10.2% over a load resistance range of 0.1–2 k .