⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种用于可穿戴和植入式设备的亚毫瓦级天线阻抗检测技术，通过电平衡实现单步片上可调匹配，以解决近场效应导致的性能下降问题。该技术实现了低功耗、快速的阻抗检测，从而延长电池寿命并提高系统鲁棒性。
g., heart-rate-monitor straps and implanted wireless sensors, need to be ultra-low-power (ULP), compact, and also robust against the proximity effect, which can significantly degrade the antenna and frontend performance and hence battery lifetime. A fully integrated adaptive front-end with a tunable matching network (TMN) using low-power and fast impedance detection is highly desirable for robust and efficient operation. The impedance mismatch detection is crucial in such tuning systems in terms of tuning speed and power consumption. Several impedance detection techniques are presented in recent prior arts [1-3]. All of them have limited detection precision, and only detect the mismatched impedance in certain direction [1,2] or range [3]. Time-consuming optimization methods (i.e. exhaustive search or a successive approximation) are therefore required. Yet, no on-chip exact
Chuang Lu, Ao Ba, Yao-Hong Liu, Xiaoyan Wang, Christian Bachmann, Kathleen Philips
Holst Centre / imec, Eindhoven, The Netherlands Wearable/implantable devices, e