← 返回 JSSC 论文列表JSSC 2008第9期RF & Wireless0.35μm
A Non-Coherent DPSK Data Receiver With Interference Cancellation for Dual-Band T
提出一种无需高阶滤波器的非相干DPSK接收机，用于双频带遥测系统，有效抑制功率信号干扰。
0.35μm CMOS, 6.2mW, 2.6×1.7mm²
非相干DPSK双频带遥测干扰消除子采样CMOS
▸创新点1：采用非相干DPSK接收机设计，无需高阶滤波器即可抑制功率信号干扰，显著降低系统复杂度与功耗（技术贡献：通过差分调制在模拟域实现干扰消除，避免传统高功耗滤波器的使用）
▸创新点2：提出模拟域差分解调技术，直接处理双频带信号中的强功率载波干扰（方法创新：利用载波间相位差特性，在解调阶段实现干扰抵消，支持12dB以上干扰抑制）
▸创新点3：引入子采样技术替代传统PLL载波同步电路（电路创新：通过降低采样率简化系统架构，实测支持1-2Mbps数据速率，功耗仅6.2mW）
▸创新点4：双频带协同传输架构优化（系统创新：功率与数据载波频率分离设计，兼顾能量传输效率(20MHz)与数据速率(2Mbps)，芯片面积仅2.6x1.7mm²）
Abstract
A dual-band telemetry, which has different carrier
frequencies for power and data signals, is used to maximize
both power transfer efficiency and data rate for transcutaneous
implants. However, in such a system, the power signal interferes
with the data transmission due to the multiple magnetic couplings
paths within the inductive coils. Since the power level of the
transmitted power signal is significantly larger than that of the
data signal, it usually requires a high-order filter to suppress the