Flexible EBG-backed PIFA based on conductive textile and PDMS for wearable applications

被引：17
作者：
Gao, Guoping [1 ]
Wang, Shaofei [1 ]
Zhang, Ruifeng [1 ]
Yang, Chen [1 ]
Hu, Bin [1 ,2 ]
机构：
[1] Lanzhou Univ, Sch Informat Sci & Engn, Gansu Prov Key Lab Wearable Comp, Lanzhou 730000, Gansu, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Biol Sci, CAS Ctr Excellence Brain Sci & Intelligence Techn, Shanghai, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2020年 / 62卷 / 04期
基金：
中国国家自然科学基金;
关键词：
electromagnetic bandgap; planar inverted-F antenna; polydimethylsiloxane; wearable antenna; ANTENNA; COMPACT; DESIGN;
D O I：
10.1002/mop.32224
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A wearable planar inverted-F antenna (PIFA) fed by the coplanar waveguide (CPW) and backed with an optimized electromagnetic bandgap (EBG) structure is presented. The antenna is made of conductive textile and polydimethylsiloxane (PDMS), which is a conformal and robust solution to wearable applications. The EBG unit cell is miniaturized according to the equivalent circuit model, and the cross-polarization is suppressed due to its approximate 180 degrees reflection phase in the orthogonal direction. The measured impedance bandwidth ranges from 2.30 to 2.65 GHz, which covers the 2.4 GHz Industrial Scientific Medical (ISM) band. The antenna keeps a high gain and efficiency above 70% under different conditions including being flat, bent, and close to the human body. The maximum SAR value is limited to 0.612 and 0.330 W/kg under 1 and 10 g standard, respectively. Therefore, the antenna is a promising candidate for wearable applications in various domains.
引用
收藏
页码：1733 / 1741
页数：9
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