VO2基于memristor的频率转换器,在现场进行合成和混合,用于无线物联网
Chang Liu1, Pek Jun Tiw1, Teng Zhang1
1Beijing Advanced Innovation Center for Integrated Circuits, School of Integrated Circuits, Peking University, Beijing, 100871, China.
Nature communications
|February 20, 2024
概括
本研究介绍了一种新的二氧化瓦纳 (VO2) 记忆电振荡器,用于无线物联网 (WIoT) 频率转换器. 与传统的基于CMOS的系统相比,这种新设备显著提高了功率效率,并减少了延迟时间.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 计算机科学 计算机科学
背景情况:
- 无线物联网 (WIoT) 系统需要高效的数据传输.
- 使用CMOS技术的现有频率转换器存在高延迟和能源消耗问题.
- 需要新的材料和设备架构来提高WIoT性能.
研究的目的:
- 开发一种高度均且可校准的二氧化瓦纳 (VO2) 记忆振荡器.
- 将这个振荡器集成到基于memristor的频率转换器中,用于WIoT应用.
- 在速度和能源效率方面评估基于VO2的频率转换器的性能.
主要方法:
- 一个8x8的VO2记忆器阵列的制造.
- 基于VO2的负差电阻的自我振荡的研究.
- 现场频率合成和混合能力的展示.
- 端到端WIoT实验设置用于数据传输 (声学,视觉,空间).
主要成果:
- 该VO2记忆器振荡器使得在现场的频率合成和混合为2-8通道高达48 kHz.
- 基于memristor的频率转换器实现了1.45x-1.94x的功率增强.
- 与CMOS转换器相比,性能降低是最小的 (0.02-0.21 dB).
- 该设备表现出高度的统一性和可编程性.
结论:
- VO2记忆器振荡器为WIoT中的高速低能频率转换提供了一个有前途的解决方案.
- 这项技术可以显著提高下一代WIoT系统的效率.
- 使用表轴增长的VO2和可校准的振荡器阵列解决了WIoT设计中的关键挑战.
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