电子可切换的双带囊天线用于无线内镜应用.
Nayab Gogosh1,2, Sohail Khalid3, Bilal Tariq Malik2
1Electrical and Computer Engineering Department, Riphah International University, Islamabad, Pakistan.
Scientific reports
|January 27, 2026
概括
无线囊内镜的新型紧天线可以在小肠中实现双频段Wi-Fi通信. 这种设计增强了数据传输,并节省了电力,以提高安全性和延长运行.
科学领域:
- 电气工程 电气工程
- 生物医学工程 生物医学工程
- 无线通信无线通信
背景情况:
- 囊内镜对于检查小肠至关重要,这是传统有线内镜具有挑战性的区域.
- 现有的囊内镜系统需要紧,高效的天线可靠的数据传输.
- 对于管理不同类型的数据和节省电力而言,双带操作是理想的.
研究的目的:
- 为无线囊内镜设计和评估一个紧的,线性极化平面双环状环形天线.
- 为了在最小的足迹范围内实现在Wi-Fi频率 (2.45GHz和5.8GHz) 的双频段运行.
- 为了实现电子开关,以实现高效的电源管理和提高安全性.
主要方法:
- 一个平面的双环形环形天线被设计出来,并从传统的环形环形结构中衍生出来.
- 天线被优化为半径为4.7毫米,以适应囊尺寸.
- 进行了体外测试,以测量天线性能,包括增益,带宽和特定吸收率 (SAR).
主要成果:
- 该天线实现了2.45GHz和5.8GHz的双频段运行,带宽分别为20.8%和6.7%.
- 实现了更高频段的电子切换功能,以实现高效的电源管理.
- 测量的增益为-17.3dBi和-18dBi,SAR值为21.5W/kg和24.7W/kg,确保在IEEE和ECC标准内安全运行.
结论:
- 开发的紧型天线适用于无线囊内镜,提供双带Wi-Fi通信.
- 电子开关功能允许高效的电源管理和降低SAR水平,提高安全性.
- 天线提供可靠的链接边缘,确保胃肠道检查的有效数据传输.
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