A low sar value wearable antenna for wireless body area network based on amc structure

被引：0
|
作者：
Yin B. [1 ]
Gu J. [1 ]
Feng X. [1 ]
Wang B. [1 ]
Yu Y. [1 ]
Ruan W. [1 ]
机构：
[1] The College of Photoelectric Engineering, Chongqing University of Posts and Telecommunications, Chongqing
来源：
Progress In Electromagnetics Research C | 2019年 / 95卷
关键词：
Electric impedance;
D O I：
10.2528/pierc19040103
中图分类号：
学科分类号：
摘要：
This paper proposes a wearable antenna for Wireless Body Area Network (WBAN) that operates at the 2.45GHz medical band. The antenna is enabled by coplanar waveguide, and the impedance bandwidth of the antenna is expanded by combining a circular slot with asymmetric slots. In order to reduce the radiation of the antenna back lobe and improve the antenna gain, a new 2×2 Artificial Magnetic Conductor (AMC) is designed and loaded under the monopole antenna. The radiation of antenna back lobe is effectively reduced due to the addition of AMC reflector. Also, the front-to-back ratio of the demonstrated antenna is higher than 20 dB, achieving a forward gain of 7.47 dBi and Specific Absorption Rate (SAR) lower than 0.15 W/kg, in the ISM band. For further research, the antenna is fabricated and tested, showing a strong agreement between simulation and measurement. Meanwhile, the antenna has stable performance under the bending condition, meeting the practical application requirements of wearable equipment. © 2019, Electromagnetics Academy. All rights reserved.
引用
收藏
页码：119 / 129
页数：10
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