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Magnetic field tunable flexible wireless communication device

磁场可调柔性无线通信装置

基本信息

批准号：
318612841
负责人：
Professor Dr. Mathias Kläui
金额：
--
依托单位：
Institut für Ionenstrahlphysik und Materialforschung
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2017
资助国家：
德国
起止时间：
2016-12-31 至 2019-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/318612841?language=en
关键词：
Magnetic field tunable flexible wireless

项目摘要

When combined with wireless communication systems, soft, flexible and transient smart sensorics for instance for monitoring physiological conditions is at the forefront of multidisciplinary research bridging materials science, physics, electrical engineering, and medicine. While in particular spintronic devices have been developed for communication and sensing applications, they have largely not been explored on flexible and stretchable surfaces. Wireless magnetosensorics can pave the way towards on-skin proximity detection systems for touchless human-machine interaction, motion and displacement sensorics, as well as functional medical implants. Magnetoresistive elements are envisioned to act as a versatile tool to assess for instance the mechanical movements of heart valves in vivo to diagnose early stages of dysfunctions.We will explore spintronic devices for combined high frequency bendable sensor and communications systems. We will fabricate a demonstrator consisting of a flexible magnetoresistive element integrated into a flexible resonant circuit with an antenna and capacitor and demonstrate transmission of the measured sensor signal to an external device, i.e. a smartphone. To realize the communication with the entirely passive flexible device, which could serve e.g. to sense the heart function, we will fabricate monitoring electronics. To ensure the necessary transparency in the human body as needed for the implant applications, the device will be designed to work in the tens of MHz frequency range.To realize this vision, we use a multi-pronged approach that combines the necessary fundamental investigations with applied development, which can only be achieved by combining the know-how of two groups. Firstly, we have to understand the behavior of flexible magnetic sensors from DC-GHz frequencies exposed to tensile or compressive strain occurring due to the flexibility. In particular, we need to ascertain the intrinsic magnetic properties as well as the resulting transport properties, as reflected in the fundamental aspects of the project. On the application side, we will realize the flexible resonant circuit and monitoring electronics, where we aim to tune the resonance frequency and the Q-factor of the circuit using the external magnetic field that will be sensed.

例如，当与无线通信系统相结合时，用于监测生理状况的软、灵活和瞬时智能传感器处于多学科研究的前沿，架起了材料科学、物理、电气工程和医学的桥梁。特别是自旋电子器件已经被开发用于通信和传感应用，但在柔性和可伸展的表面上很大程度上还没有被探索过。无线磁传感器可以为非接触式人机交互、运动和位移传感器以及功能性医疗植入物的皮肤接近检测系统铺平道路。磁阻元件被认为是一种多功能的工具，可以评估活体心脏瓣膜的机械运动，以诊断早期功能障碍。我们将探索用于组合高频可弯曲传感器和通信系统的自旋电子器件。我们将制作一个由柔性磁阻元件集成到带有天线和电容器的柔性谐振电路中的演示器，并演示将测量的传感器信号传输到外部设备，即智能手机。为了实现与完全无源的柔性设备的通信，例如可以检测心脏功能，我们将制造监测电子设备。为了确保植入应用所需的人体内必要的透明度，该设备将被设计为在数十MHz的频率范围内工作。为了实现这一愿景，我们采用了多管齐下的方法，将必要的基础研究与应用开发相结合，这只能通过结合两个小组的技术诀窍来实现。首先，我们必须了解DC-GHz频率的柔性磁性传感器在由于柔性而产生的拉伸或压缩应变下的行为。特别是，我们需要确定本征磁性以及由此产生的输运性质，正如该项目的基本方面所反映的那样。在应用方面，我们将实现灵活的谐振电路和监控电子设备，我们的目标是使用将被检测的外部磁场来调节电路的谐振频率和Q因数。

项目成果

期刊论文数量（6）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Piezo-electrical control of gyration dynamics of magnetic vortices

DOI：
10.1063/1.5110169
发表时间：
2019-08
期刊：
Applied Physics Letters
影响因子：
4
作者：
M. Filianina;L. Baldrati;T. Hajiri;K. Litzius;M. Foerster;L. Aballe;Mathias Kläui
通讯作者：
M. Filianina;L. Baldrati;T. Hajiri;K. Litzius;M. Foerster;L. Aballe;Mathias Kläui

Electronic-skin compasses for geomagnetic field-driven artificial magnetoreception and interactive electronics