人工磁导体支持的双模式部门圆柱式DRA用于体外生物医学遥测
Nayab Gogosh1,2, Sohail Khalid1, Bilal Tariq Malik3
1Electrical and Computer Engineering Department, Riphah International University, Islamabad, Pakistan.
Scientific reports
|August 29, 2025
概括
这项研究介绍了一种用于可穿戴生物医学遥测的新型部门圆柱形电流共振天线 (CDRA). 增强的天线设计提供了更好的带宽和更小的尺寸,使其适合健康监测设备.
科学领域:
- 电磁学
- 生物医学工程
- 天线设计
背景情况:
- 圆柱形电阻共振天线 (CDRA) 提供低损耗和稳定性,但带宽和尺寸问题有限.
- 由于这些局限性,现有的CDRA通常不适用于可穿戴应用.
研究的目的:
- 研究生物医学遥测应用的部门CDRA.
- 解决传统CDRA对可穿戴设备的带宽和尺寸限制.
主要方法:
- 设计了一种双模式的部门CDRA,利用四分之一的完美电导体边界来减少尺寸.
- 对双模式操作进行了场部件的数学推导.
- 整合了人工磁导体 (AMC) 表面以最大限度地降低特定吸收率 (SAR).
主要成果:
- 部门CDRA实现了0.7GHz (5.2-5.9GHz) 的带宽,适用于生物医学应用.
- 测定了7. 9dBi的峰值增强.
- 在人类手臂上测试时,记录了1. 24W/ kg的特定吸收率 (SAR).
结论:
- 拟议的部门CDRA设计有效地提高了带宽并减少了天线尺寸.
- 该天线证明适用于生物医学遥测和可穿戴应用,具有可接受的SAR水平.
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