Dual-Band Flexible MIMO Antenna with Self-Isolation Enhancement Structure for Wearable Applications

YANG Lingsheng; XIE Yizhang; JIA Hongting; QU Meixuan; LU Zhengyan; LI Yajie

doi:10.23919/cje.2021.00.293

Volume 32 Issue 4

Jul. 2023

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Article Navigation > Chinese Journal of Electronics > 2023 > 32(4): 692-702

YANG Lingsheng, XIE Yizhang, JIA Hongting, et al., “Dual-Band Flexible MIMO Antenna with Self-Isolation Enhancement Structure for Wearable Applications,” Chinese Journal of Electronics, vol. 32, no. 4, pp. 692-702, 2023, doi: 10.23919/cje.2021.00.293

Citation:

YANG Lingsheng, XIE Yizhang, JIA Hongting, et al., “Dual-Band Flexible MIMO Antenna with Self-Isolation Enhancement Structure for Wearable Applications,” Chinese Journal of Electronics, vol. 32, no. 4, pp. 692-702, 2023, doi: 10.23919/cje.2021.00.293

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Dual-Band Flexible MIMO Antenna with Self-Isolation Enhancement Structure for Wearable Applications

doi: 10.23919/cje.2021.00.293

1.
Nanjing University of Information Science and Technology, Nanjing 210044, China
2.
Kyushu University, 744 Motooka Nishi-Ku, Fukuoka, Japan
3.
Zhongda Hospital Southeast University, Nanjing 210009, China

Funds: This work was supported by the Projects of Superior Subjects in Universities of Jiangsu Province and the Projects of Intelligent Sensing Reasearch Center of Kunshan & Nanjing University of Information Science and Technology.

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Author Bio:
Lingsheng YANG received the B.S. degree in the Department of Communication Engineering, Nanjing University of Science & Technology, China, in 2001, and the M.S. and Ph.D. degrees in the Faculty of Information Science and Electrical Engineering, Kyushu University, Japan, in 2009 and 2012, respectively. (Email: ylsinchina@163.com)

Yizhang XIE recieved the B.S degree in Tianping College of Suzhou University of Science and Technology in 2019. He is currently a graduate student in the Department of Electronies and Information Engineering of Nanjing University of Information Science and Technology, Nanjing, China. His current research interests include wearable antennas and wearable equipment developing

Hongting JIA received the B.E. degree in electrical engineering from Xidian University, China, in 1987, M.E. and D.E. degrees in communication engineering from Kyushu University, Fukuoka, Japan, in 1996 and 1999, respectively. From 1987 to 1992, he was with the Hebei Semiconductor Research Institute, China. In 1999, he joined the Faculty of Engineering, Nagasaki University, Nagasaki, Japan. In 2001, he joined Kyushu University. His current research interests include RF/microwave circuits, direct/inverse-scattering problems, grating problems, and numerical analysis. He is a Member of the Institute of Electrical, Information, and Communication Engineers, Japan and the Institution of Electrical Engineers, Japan

Meixuan QU was born in Zhejiang Province, China, in 1999. Now he is an undergraduate student in Electronics & Information Engineering Department, Nanjing University of Information Science and Technology. His research interests include antennas and signal processing

Zhengyan LU was born in Xuzhou, Jiangsu Province, China, in 1994. He received the B.S.degree in electronics engineering from Nanjing University of Information Science and Technology, in 2016. Now he is a postgraduate student in Electronics & Information Engineering Department, Nanjing University of Information Science and Technology. His research interests include wearable antennas and bioelectromagnetics

Yajie LI (corresponding author) received the B.S. and M.S. degrees in the School of Medicine, Zhejiang University, China, in 2005 and 2007, respectively. From 2007 to 2012, she worked for the First Affiliated Hospital of Wenzhou Medical University. Since 2012, she has been an Attending Doctor with the Geriatric Department, ZhongDa Hosipital, Southeast University. She is an author of nearly 20 papers. Her research interests include gerontology, internal medicine of digesting, medical engineering, and bioelectromagnetics. (withlove1982@163.com)
Received Date: 2021-08-19
Accepted Date: 2022-08-16

Available Online: 2022-10-19

Publish Date: 2023-07-05

Abstract

Abstract

A two-element dual-band flexible multi-in multi-out antenna which can be used for wearable applications is proposed in this paper. The antenna consists of two radiating elements fed by coplanar waveguide, and a shielding layer, which are all made of flexible conductive cloth MKKTN260. Each radiating element is composed of two coupled split ring-shaped bending strips. The proposed antenna shows two measured impedance bandwidth (S₁₁<−10 dB) of 2.39–2.48 GHz and 5.72–5.88 GHz, so that it can be used for 2.4 GHz and 5.8 GHz ISM (industrial scientific medical) applications. The two coupled split rings form a self-isolation enhancement structure and can realize polarization diversity at 2.4 GHz band and radiation shielding at 5.8 GHz band, respectively. High isolation (>30 dB) has been achieved for both the bands. Other characteristics for wearable applications like gain, efficiency, specific absorption rate, and bending performances were also studied.
- Flexible antenna,
- Shielding layer,
- Coplanar waveguide,
- Mult-in multi-out,
- Wearable

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References(32)

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