低比吸收率电磁带隙可穿戴偶极子天线

2018 International Conference on Computing, Mathematics and Engineering Technologies (iCoMET) Pub Date : 2018-03-03 DOI:10.1109/ICOMET.2018.8346441

A. Khan, S. Bashir, Faiz Ullah

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引用次数: 4

摘要

提出了一种新型的2.1GHz平面可穿戴偶极子天线。衬底采用介电常数为1.38，厚度为1.1mm的毛毡。该天线具有准全向方向图，具有较高的反向辐射，具有较高的比吸收率(SAR)。在自由空间和靠近人体的地方对天线的效果进行了评估。天线与人体的相互作用会降低天线的性能，为了克服这一问题，提出了将天线与电磁带隙(EBG)结构集成，以减少反向辐射。结果，谐振频率下的比吸收率(SAR)降低98%，天线增益增加到9-10 dB，回波损耗增加到24-28dB。用于天线设计和仿真的软件是CST MWS。

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Electromagnetic bandgap wearable dipole antenna with low specific absorption rate

A novel wearable planar dipole antenna for 2.1GHz is presented in this paper. Felt fabric with permittivity 1.38 and thickness 1.1mm is used as a substrate. The proposed antenna has quasi omnidirectional pattern that results in high backwards radiation indicating high specific absorption rate (SAR). Antenna results have been evaluated in free space as well as in close vicinity to human body. The interaction of antenna with human body degrades antenna performance, to overcome this issue proposed antenna is integrated with electromagnetic band gap (EBG) structure resulting in reduction of backward radiations. As a result specific absorption rate (SAR) at resonant frequency reduces by 98%, antenna gain increases to 9–10 dB and return loss by 24–28dB. The software used for the design and simulation of antenna is CST MWS.

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来源期刊

2018 International Conference on Computing, Mathematics and Engineering Technologies (iCoMET)

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