用于乳腺癌及无线体域网应用的全接地超宽带可穿戴纺织天线。

Full Ground Ultra-Wideband Wearable Textile Antenna for Breast Cancer and Wireless Body Area Network Applications.

作者信息

Mahmood Sarmad Nozad, Ishak Asnor Juraiza, Saeidi Tale, Soh Azura Che, Jalal Ali, Imran Muhammad Ali, Abbasi Qammer H

机构信息

Department of Electrical and Electronic Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia.

Electrical and Electronic Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia.

出版信息

Micromachines (Basel). 2021 Mar 19;12(3):322. doi: 10.3390/mi12030322.

DOI:10.3390/mi12030322

PMID:33808523

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8003189/

Abstract

Wireless body area network (WBAN) applications have broad utility in monitoring patient health and transmitting the data wirelessly. WBAN can greatly benefit from wearable antennas. Wearable antennas provide comfort and continuity of the monitoring of the patient. Therefore, they must be comfortable, flexible, and operate without excessive degradation near the body. Most wearable antennas use a truncated ground, which increases specific absorption rate (SAR) undesirably. A full ground ultra-wideband (UWB) antenna is proposed and utilized here to attain a broad bandwidth while keeping SAR in the acceptable range based on both 1 g and 10 g standards. It is designed on a denim substrate with a dielectric constant of 1.4 and thickness of 0.7 mm alongside the ShieldIt conductive textile. The antenna is fed using a ground coplanar waveguide (GCPW) through a substrate-integrated waveguide (SIW) transition. This transition creates a perfect match while reducing SAR. In addition, the proposed antenna has a bandwidth (BW) of 7-28 GHz, maximum directive gain of 10.5 dBi and maximum radiation efficiency of 96%, with small dimensions of 60 × 50 × 0.7 mm. The good antenna's performance while it is placed on the breast shows that it is a good candidate for both breast cancer imaging and WBAN.

摘要

无线体域网（WBAN）应用在监测患者健康和无线传输数据方面具有广泛的用途。WBAN可以从可穿戴天线中大大受益。可穿戴天线为患者监测提供了舒适性和连续性。因此，它们必须舒适、灵活，并且在靠近身体时不会过度衰减地运行。大多数可穿戴天线使用截断接地，这会不期望地增加比吸收率（SAR）。本文提出并采用了一种全接地超宽带（UWB）天线，以在基于1 g和10 g标准将SAR保持在可接受范围内的同时获得宽带宽。它是在介电常数为1.4、厚度为0.7 mm的牛仔布基板上与ShieldIt导电织物一起设计的。天线通过衬底集成波导（SIW）过渡使用接地共面波导（GCPW）馈电。这种过渡在降低SAR的同时实现了完美匹配。此外，所提出的天线带宽（BW）为7 - 28 GHz，最大方向增益为10.5 dBi，最大辐射效率为96%，尺寸小至60×50×0.7 mm。该天线放置在乳房上时的良好性能表明它是乳腺癌成像和WBAN的良好候选者。