Circularly Polarized Wearable Antenna With Low Profile and Low Specific Absorption Rate Using Highly Conductive Graphene Film

被引:62
|
作者
Zu, Hao-Ran [1 ]
Wu, Bian [1 ]
Zhang, Ya-Hui [1 ]
Zhao, Yu-Tong [1 ]
Song, Rong-Guo [2 ]
He, Da-Ping [2 ]
机构
[1] Xidian Univ, Key Lab Antennas & Microwave Technol, Xian 710071, Peoples R China
[2] Wuhan Univ Technol, Engn Res Ctr RF Microwave Technol & Applicat, Wuhan 430070, Peoples R China
来源
基金
中国国家自然科学基金;
关键词
Bending; Reflection; Graphene; Conductivity; Specific absorption rate; Dipole antennas; Circularly polarized; highly conductive graphene film (CGF); low profile; specific absorption rate (SAR); wearable antenna; TEXTILE ANTENNA; PERFORMANCE; COMPACT;
D O I
10.1109/LAWP.2020.3033013
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 low-profile circularly polarized wearable antenna with flexible performance and reduced specific absorption rate (SAR) based on graphene is presented. The antenna adopts highly conductive graphene film and polydimethylsiloxane substrate, which have good flexibility, mechanical stability, and light weight. The wearable antenna operating at 5.8 GHz with a profile of 0.05 lambda is designed and fabricated, which retains a reflection coefficient of less than -10 dB when loaded on the human body. The measured results indicate the axial-ratio (AR) bandwidth for AR<3 dB covers 5.75-5.83 GHz with the realized gain varying from 5.0-6.1 dBic. The SAR peak is 1.02 W/kg when the human tissue is 1g and 0.947 W/kg when the human tissue is 10g, which meets the international SAR standards.
引用
收藏
页码:2354 / 2358
页数:5
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