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综合模拟信号处理平台,通过在二维材料中的声电荷传输来实现

Yueyi Sun¹, Siming Liu¹, Jiefei Zhu²

¹School of Microelectronics, South China University of Technology, Guangzhou 511442, P. R. China.

Science advances

|October 8, 2025

概括

本研究介绍了一种混合平台,用于使用二维声学电荷传输 (2D-ACT) 设备进行实时模拟信号处理. 它可以实现高级功能,如信号加法和减法,用于下一代无线通信.

科学领域:

物理物理学物理
材料科学材料科学材料科学
电气工程电气工程

背景情况:

微型化,低损失的模拟信号处理对于先进的无线通信和传感技术至关重要.
集成二维场效应晶体管 (FET) 和表面声波 (SAW) 的二维声学电荷传输 (2D-ACT) 设备显示出希望,但仅限于直流 (dc) 操作.
实时应用需要交流电 (ac) 模拟信号处理能力.

研究的目的:

在一个单一的2D-ACT设备中开发一个混合平台,用于全面的DC和AC模拟信号处理.
为了实现实时的亚波长载波监控和AC信号操纵.
通过使用受控SAWs来展示新的信号处理功能,例如模拟信号加法和减法.

主要方法:

2D-FET和SAW组件在混合平台中的协同集成.
执行电流测量以分析声电流生成机制.
精确控制反传播SAW的相位和强度,以操纵信号.

主要成果:

实现了实时亚波长载波监控和AC信号操纵.
通过ac测量,阐明了通过ac测量控制直流声电流生成的机制.
通过控制 SAW 参数来证明模拟信号的加法和减法能力,这是2D-ACT 设备的首次.

结论:

开发的混合平台为2D-ACT设备中的紧,低损失的交流信号处理设定了新的基准.
这项工作代表了声电技术和2D材料系统的重大进步.
该平台为未来无线和传感应用中增强实时信号处理铺平了道路.

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