A Triple-Band Broadband Miniature Antenna Design for Implantable Continuous Glucose Monitoring

IF 1.2 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Antennas and Propagation Pub Date : 2023-10-13 DOI:10.1155/2023/8123177

Zhiwei Song, Xiaoming Xu, Hongxiang Miao, Lu Wang

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Abstract

This paper presents a miniaturized triband implantable planar antenna that covers the industrial, scientific, and medical (ISM) band and the Wireless Medical Telemetry Service (WMTS) band which can be used in a continuous blood glucose monitoring device. The antenna consists of a slotted radiating patch and a ground plane with a cross slot to miniaturize its size. The overall antenna size is only 51.35 mm3 (7.6 × 7.6 × 0.889 mm3) due to the reduced size by the slotting technique. Compared to other implantable antennas with similar performance, the proposed antenna is smaller in size, simple in construction, and easy to be fabricated. By cutting a cross slot in GND, impedance matching is improved, especially at the two higher frequency bands. We have fabricated the prototype and carried out measurements. The results show its gains are −32.2 dBi, −18.8 dBi, and −19.1 dBi at 0.9 GHz, 1.4 GHz, and 2.45 GHz, respectively. Its radiation patterns have good symmetry in the two lower operating frequency bands. In addition, the maximum SAR values comply with the IEEE standard safety guidelines (IEEE C95.1-2019).

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用于植入式连续血糖监测的三波段宽带微型天线设计

提出了一种微型三波段植入式平面天线，该天线覆盖工业、科学和医疗(ISM)波段和无线医疗遥测服务(WMTS)波段，可用于连续血糖监测装置。该天线由开槽辐射贴片和带交叉槽的接地面组成，以减小其尺寸。由于采用开槽技术减小了天线的尺寸，天线的总尺寸仅为51.35 mm3 (7.6 × 7.6 × 0.889 mm3)。与其他具有类似性能的可植入天线相比，该天线具有体积小、结构简单、易于制作等优点。通过在GND中切割一个交叉槽，可以改善阻抗匹配，特别是在两个较高频段。我们已经制作了原型并进行了测量。结果表明，在0.9 GHz、1.4 GHz和2.45 GHz时，其增益分别为- 32.2 dBi、- 18.8 dBi和- 19.1 dBi。其辐射方向图在两个较低工作频段具有良好的对称性。此外，最大SAR值符合IEEE标准安全指南(IEEE C95.1-2019)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Antennas and Propagation ENGINEERING, ELECTRICAL & ELECTRONIC-TELECOMMUNICATIONS

CiteScore

3.10

自引率

13.30%

发文量

158

审稿时长

3.8 months

期刊介绍： International Journal of Antennas and Propagation publishes papers on the design, analysis, and applications of antennas, along with theoretical and practical studies relating the propagation of electromagnetic waves at all relevant frequencies, through space, air, and other media. As well as original research, the International Journal of Antennas and Propagation also publishes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.