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IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-11-28 DOI:10.1109/LAWP.2024.3506616

Huajie Cai;Changrong Liu

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引用次数: 0

摘要

针对 2.4 GHz 工业、科学和医疗（ISM）频段[(2.4 至 2.48) GHz]设计了一种紧凑型圆极化（CP）环形天线，并进行了实验验证。该设计引入了通孔来扩展电流路径，同时将弯曲部分与地面进行电容耦合，从而在减小天线尺寸方面取得了良好的效果。此外，四个角上安装的方形贴片与地面相连，可对天线进行电容和电感加载，从而进一步有效缩小了天线的占地面积。与之前的研究相比，该天线的金属元件集中在外围，从而有可能在天线内部嵌入植入式设备元件，这有利于设备的小型化。我们通过仿真研究了嵌入式电路对天线性能的影响。天线的尺寸为 9 mm $ \times $ 9 mm $ \times $ 0.762 mm，模拟阻抗带宽（IBW）（|S11| < -10 dB）覆盖范围为 2.35 GHz 至 2.53 GHz，轴比带宽（ARBW）（AR < 3 dB）覆盖范围为 2.44 GHz 至 2.48 GHz。天线是在碎猪肉中测量的，结果与模拟结果一致。

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Circularly Polarized Loop Antenna for 2.4 GHz ISM-Band Biotelemetry Devices

A compact circularly polarized (CP) loop antenna is designed and experimentally validated for the 2.4 GHz Industrial, Scientific, and Medical (ISM) band [(2.4 to 2.48) GHz]. The design introduces vias to extend the current path, which meanwhile introduces capacitive coupling of the bending part to the ground, producing good results in reducing the antenna size. Additionally, four corner-mounted square patches, connected to the ground, serve to capacitively and inductively load the antenna, further effectively downsizing its footprint. Compared to previous work, the antenna's metallic components are concentrated at the periphery, making it possible to embed implantable device components inside the antenna, which favors equipment miniaturization. The influence of embedded circuits on antenna performance is studied through simulation. The size of the antenna is 9 mm

$ \times $

9 mm

$ \times $

0.762 mm, and it achieves simulated impedance bandwidth (IBW) (|S₁₁| < −10 dB) coverage of 2.35 GHz to 2.53 GHz and axial ratio bandwidth (ARBW) (AR < 3 dB) coverage of 2.44 GHz to 2.48 GHz. The antenna is measured in the minced pork, and the result is consistent with the simulated one.

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.