The latest paper in Hanyang University published by NATURE
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A core technology for wearable devices that maintains high-performance long-distance wireless communication and high-efficiency wireless electricity transmission functions despite how many times the device is stretched.
Professor Jung Yei-hwan at the School of Electronic Engineering and Yoo Hyoung-suk at the Major in Biomedical Engineering developed a stretchable wearable wireless communication system using nanocomposite material technology that has been unreported so far. The technology featured in the May 23 issue of the prestigious journal "Nature" (IF 64.8) can be broadly applied to stretchable wireless communication devices like antennas, transmission lines, and coils.
Read more about the article here.
Wireless modules that provide telecommunications and power-harvesting capabilities enabled by radio-frequency (RF) electronics are vital components of skin-interfaced stretchable electronics. However, recent studies on stretchable RF components have demonstrated that substantial changes in electrical properties, such as a shift in the antenna resonance frequency, occur even under relatively low elastic strains. Such changes lead directly to greatly reduced wireless signal strength or power-transfer efficiency in stretchable systems, particularly in physically dynamic environments such as the surface of the skin. Here we present strain-invariant stretchable RF electronics capable of completely maintaining the original RF properties under various elastic strains using a ‘dielectro-elastic’ material as the substrate.
Get in touch with Yoo Hyoung-suk for a Collaborative Research
The research team of Professor Jung Yei-hwan of the Department of Electronic Engineering succeeded at developing electronic skin that maintains wireless communication performance even if deformed like rubber for the first time in the world on May 23. The electronic skin is highly likely to be applied to wearable devices that are actively being developed.
The existing flexible substrates used in RF circuit technology (technology to design and realize electronic circuits used to process and transmit wireless frequency signals) of wearable devices were limited in that their performance changed if they were deformed because they are sensitive to physical changes. Jung thus developed a flexible wireless device that maintains wireless communication and power reception functions even under mechanical deformation.
Get in touch with Jung Yei-hwan for a Collaborative Research