Highly stretchable, deformation-stable wireless powering antenna for wearable electronics

Zidong He, Yuwei Wang, Huiyun Xiao, Yuanzhao Wu, Xiangling Xia, Shengbin Li, Jinyun Liu, Kai Huang, Fen Wang, Jie Shang, Yiwei Liu, Hongyang Li, Fali Li, Shengding Wang, Guang Zhu, Run Wei Li

Research output: Journal PublicationArticlepeer-review

6 Citations (Scopus)


Near-field communication (NFC) antennas, which use electromagnetic coupling technology to realize wireless transmission and energy harvesting over short distances, are widely used in wearable and implantable electronics. However, mechanical deformations are inevitable in practical applications, which usually have serious effects on their resonant frequency and quality factor, resulting in communication failure. Here, we report a highly stretchable, deformation-stable NFC antenna (SDNA) based on a spider-web structure and liquid-metal microchannels. Results of the finite element analysis and experimental tests suggest that the proposed antenna is insensitive to tensile loading and has smaller inductance variation and resonance frequency shift. The antenna frequency is only offset by 2.75 MHz with a strain of 300 %. Its robustness and stability are verified under diverse circumstances, including folding (0–170°), bending (2.5–20 mm), twisting (0–270°), rolling (0–360°), overall pressure (1000 kPa), and cyclic stretching (5000 times). Its resonant frequency remains still stable when mounted on a contracting and expanding balloon or the moving knee joints (0–9 km/h). Based on its excellent stretchability and stability, the proposed SDNA is ideal to be used for wearable electronics, such as smart clothing. In summary, the proposed antenna has considerable potential for applications in wearable and implantable electronics.

Original languageEnglish
Article number108461
JournalNano Energy
Publication statusPublished - Jul 2023


  • Deformation-stable
  • Liquid metal
  • Near-field-communication
  • Wearable electronics
  • Wireless powering

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science
  • Electrical and Electronic Engineering


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