SCIENTIA SINICA Informationis, Volume 48, Issue 6: 724-733(2018) https://doi.org/10.1360/N112018-00010

Design of stretchable inverted-F antenna based on PDMS substrate

More info
  • ReceivedJan 9, 2018
  • AcceptedApr 13, 2018
  • PublishedJun 13, 2018


In recent years, the rapid development of the Internet of Things (IoT) has led to the rapid rise of wearable devices, and the emergence of body-area networks (BANs) has resulted in new demands for antennas. In some areas, such as biomedical applications, antennas are required to not only be stretchable, but also bendable. Traditional PCB antennas, usually fabricated on a rigid substrate, can hardly stretch or bend and are not suitable for wearable devices physically and electrically because, once stretched, the antenna's length will increase, resulting in a lower center frequency. In this paper, a stretchable flexible inverted-F antenna based on a PDMS substrate is designed that operates in the Bluetooth band. Because of the design of the meandered-line radiation arm and the division of the ground plane and flexible substrate, a stretchable inverted-F antenna is achieved. Simulation results of the antenna during stretching and bending show that the designed antenna is able to stretch up to 20% in the $X$ axis, 60% in $Y$ axis, and to bear bending with a minimum radius of curvature of 8 mm while still fully covering a Bluetooth band.

Funded by

国家重点基础研究发展计划 (973)(2015CB351906)


[1] Qian X, Su M, Li F Y, et al. Research progress in flexible wearable electronic sensors. Acta Chim Sin, 2016, 7: 565--575. Google Scholar

[2] Xie L Q, Shi P, Cai W J. Key technology and development trend of wearable smart device. BME & Clin Med, 2015, 19: 635--640. Google Scholar

[3] Saarika U, Sharma P K, Sharma D. A roadmap to the realization of wireless body area networks: a review. In: Proceedings of International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT), Chennai, 2016. 439--443. Google Scholar

[4] Shankar S K, Tomar A S. A survey on wireless body area network and electronic-healthcare. In: Proceedings of 2016 IEEE International Conference on Recent Trends in Electronics, Information & Communication Technology (RTEICT), Bangalore, 2016. 598--603. Google Scholar

[5] Liu Y, Song Y Q. Study on wireless body area networks. J Chin Comput Syst, 2013, 34: 1757--1762. Google Scholar

[6] Cai F, Li Z, Agar J C, et al. Novel stretchable electrically conductive composites for tunable RF devices. In: Proceedings of IEEE/MTT-S International Microwave Symposium Digest, Montreal, 2012. 1--3. Google Scholar

[7] Liu Q, Ford K L, Langley R, et al. Flexible dipole and monopole antennas. In: Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP), Rome, 2011. 2052--2056. Google Scholar

[8] Cheng S, Wu Z G, Hallbjorner P. Foldable and stretchable liquid metal planar inverted cone antenna. IEEE Trans Antennas Propagat, 2009, 57: 3765-3771 CrossRef ADS Google Scholar

[9] Mazlouman S J, Jiang X J, Mahanfar A N. A reconfigurable patch antenna using liquid metal embedded in a silicone substrate. IEEE Trans Antennas Propagat, 2011, 59: 4406-4412 CrossRef ADS Google Scholar

[10] Haj-Omar A, Thompson W L, Kim Y S, et al. Stretchable and flexible adhesive-integrated antenna for biomedical applications. In: Proceedings of IEEE International Symposium on Antennas and Propagation (APSURSI), Fajardo, 2016. 459--460. Google Scholar

[11] Zhang L Y, Liu F M, Li B. Equivalent dipole modeling and predicting of electromagnetic emissions of printed circuit boards. Chin J Sci Instrum, 2013, 34: 942--947. Google Scholar

[12] Yan D, Wang P, Li S Y, et al. Research and realization of 2.45 GHz printed inverted-F antenna. Chin J Sci Instrum, 2015, 10: 2372--2380. Google Scholar

[13] Hsu Y Y, Gonzalez M, Bossuyt F. Polyimide-Enhanced Stretchable Interconnects: Design, Fabrication, and Characterization. IEEE Trans Electron Dev, 2011, 58: 2680-2688 CrossRef ADS Google Scholar

[14] Li M, Zhang H, Li Z, et al. Design of an inverted F antenna for wireless network. Inf Electron Eng, 2006, 4: 464--466. Google Scholar

[15] Tian Z L. The intrinsic dependence of Poisson's ratio on stretch and rotation. Dissertation for Master's Degree. Hefei: University of Science and Technology of China, 2015. Google Scholar

[16] Arriola A, Sancho J I, Brebels S. Stretchable dipole antenna for body area networks at 2.45 GHz. IET Microw Antennas Propag, 2011, 5: 852-859 CrossRef Google Scholar

Copyright 2020 Science China Press Co., Ltd. 《中国科学》杂志社有限责任公司 版权所有

京ICP备18024590号-1       京公网安备11010102003388号