Optimization of wearable microwave antenna with simplified electromagnetic model of the human body

被引：6
|
作者：
Januszkiewicz, Lukasz [1 ]
Di Barba, Paolo [2 ]
Hausman, Slawomir [1 ]
机构：
[1] Lodz Univ Technol, Inst Elect, Wolczanska 211-215 St, Lodz, Poland
[2] Univ Pavia, Dept Elect Comp & Biomed Engn, Via Ferrata 5, I-27100 Pavia, Italy
来源：
OPEN PHYSICS | 2017年 / 15卷 / 01期
关键词：
microwave wearable antenna; automated optimal design; wireless body area network (WBAN); finite-difference time-domain (FDTD); evolutionary optimization algorithms;
D O I：
10.1515/phys-2017-0133
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper the problem of optimization design of a microwave wearable antenna is investigated. Reference is made to a specific antenna design that is a wideband Vee antenna the geometry of which is characterized by 6 parameters. These parameterswere automatically adjusted with an evolution strategy based algorithm EStra to obtain the impedance matching of the antenna located in the proximity of the human body. The antenna was designed to operate in the ISM (industrial, scientific, medical) band which covers the frequency range of 2.4 GHz up to 2.5 GHz. The optimization procedure used the finite-difference time-domain method based full-wave simulator with a simplified human body model. In the optimization procedure small movements of antenna towards or away of the human body that are likely to happen during real use were considered. The stability of the antenna parameters irrespective of the movements of the user's body is an important factor in wearable antenna design. The optimization procedure allowed obtaining good impedance matching for a given range of antenna distances with respect to the human body.
引用
收藏
页码：1055 / 1060
页数：6
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