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一种用于可穿戴生物医学设备的具有双陷波频段的新型超宽带柔性天线。

A novel UWB flexible antenna with dual notch bands for wearable biomedical devices.

作者信息

Dilruba Geyikoglu Miraç

机构信息

Department of Electrical and Electronics, Atatürk University, Erzurum, Turkey.

出版信息

Analog Integr Circuits Signal Process. 2023;114(3):439-450. doi: 10.1007/s10470-023-02146-y. Epub 2023 Feb 2.

DOI:10.1007/s10470-023-02146-y
PMID:36747992
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9892673/
Abstract

This study presents a novel UWB flexible antenna with dual band-notched design for wearable biomedical devices. The proposed antenna is designed on Kapton Polyimide-based flexible substrate. This includes a CPW fed circular and triangle structure. The dual notched bands are realized by using two triangular-shaped spiral slots defected ground structures. The first notched band (2.4-3.7 GHz) is generated for rejecting WLAN and WiMAX, the second notch (5.15-5.725 GHz) is generated for rejecting HyperLAN/2. The designed UWB antenna has approximately a bandwith of 159% (2.05-14 GHz) in simulation. Thus, the designed UWB antenna meets FCC standards. The antenna has an omnidirectional radiation pattern with a maximum gain of 12.7 dB in 8.4 GHz. The proposed antenna is fabricated with the low-cost airbrush printed technique. In this technique, a higher gain value is obtained by controlling the thickness of the conductive layer. Effect of flexibility on the antenna performance is tested for different configurations in the simulation and anechoic chamber environments. According to the results obtained, the overall performance is not affected except for the shift in frequency. Since the antenna has a UWB structure, the frequency shift that occurs in bending is at a tolerable level. The proposed UWB antenna is suitable for wearable biomedical devices, with a high UWB performance.

摘要

本研究提出了一种用于可穿戴生物医学设备的具有双频段陷波设计的新型超宽带（UWB）柔性天线。所提出的天线是在基于聚酰亚胺的柔性基板上设计的。它包括一个共面波导馈电的圆形和三角形结构。通过使用两个三角形螺旋槽缺陷接地结构实现双陷波频段。第一个陷波频段（2.4 - 3.7GHz）用于抑制WLAN和WiMAX，第二个陷波频段（5.15 - 5.725GHz）用于抑制HyperLAN/2。在仿真中，所设计的超宽带天线具有约159%（2.05 - 14GHz）的带宽。因此，所设计的超宽带天线符合美国联邦通信委员会（FCC）标准。该天线具有全向辐射方向图，在8.4GHz时最大增益为12.7dB。所提出天线采用低成本喷枪印刷技术制造。在该技术中，通过控制导电层的厚度可获得更高的增益值。在仿真和电波暗室环境中针对不同配置测试了柔性对天线性能的影响。根据所得结果，除了频率偏移外，整体性能不受影响。由于该天线具有超宽带结构，弯曲时出现的频率偏移处于可容忍水平。所提出的超宽带天线适用于可穿戴生物医学设备，具有较高的超宽带性能。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b90/9892673/7c407dda5ea8/10470_2023_2146_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b90/9892673/812047a47335/10470_2023_2146_Fig1_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b90/9892673/b7dbae27fabd/10470_2023_2146_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b90/9892673/094efa506ece/10470_2023_2146_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b90/9892673/28489b86e160/10470_2023_2146_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2b90/9892673/7c407dda5ea8/10470_2023_2146_Fig10_HTML.jpg

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ScientificWorldJournal. 2013 Oct 3;2013:402914. doi: 10.1155/2013/402914. eCollection 2013.
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A Simulation Study of Triband Low SAR Wearable Antenna.三频段低比吸收率可穿戴天线的仿真研究
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