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DGS-based wideband MIMO antenna for on–off body communication with port isolation enhancement operating at 2.45 GHz industrial scientific and medical band
Journal of Electromagnetic Waves and Applications ( IF 1.2 ) Pub Date : 2020-12-26 , DOI: 10.1080/09205071.2020.1865209
Anupma Gupta 1 , Vipan Kumar 2
Affiliation  

A wide band, dual radiator Multiple input multiple output (MIMO) antenna resonating at 2.4 GHz Industrial Scientific and Medical (ISM) band is designed and analysed for the body-centric wireless communication. Defected ground structure (DGS) is used to reduce the antenna size and to achieve wide bandwidth. Moreover, a decoupling slot is also etched in the ground plane to improve the port isolation. Proposed 2 × 1 array MIMO structure has occupied the volume of 90 × 40 × 0.8 mm3. Rectangular and cylindrical shaped multi-layered tissue models are used for simulation and pork tissue is used for the measurement of antenna performance. Broad 10-dB bandwidth of 1250/900 MHz, port isolation of 21/20 dB, gain of 5.53/5.07 dBi with, SAR value of 0.628/0.627 W/kg is achieved for the flat/deformed state of antenna. Results show that the proposed DGS-based antenna is reliable to operate on different tissue environment for body area network.



中文翻译:

基于DGS的宽带MIMO天线,可在2.45 GHz工业科学和医学频段上进行端口隔离增强的开关式人体通信

设计并分析了以2.4 GHz工业科学和医学(ISM)频段谐振的宽带双辐射器多输入多输出(MIMO)天线,用于以人体为中心的无线通信。挠性接地结构(DGS)用于减小天线尺寸并实现宽带宽。此外,在接地平面上还蚀刻有一个去耦槽,以改善端口隔离度。拟议的2×1阵列MIMO结构已占据90×40×0.8 mm的体积3。矩形和圆柱形多层组织模型用于仿真,猪肉组织用于测量天线性能。对于天线的扁平/变形状态,可实现1250/900 MHz的10dB宽带宽,21/20 dB的端口隔离,5.53 / 5.07 dBi的增益,SAR值为0.628 / 0.627 W / kg。结果表明,所提出的基于DGS的天线在人体区域网络的不同组织环境下运行都是可靠的。

更新日期:2020-12-26
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