设计一个紧的双频,双极化的天线,用于生物测量通信,使用特征模式方法
Xiaoming Xu1, Zhiwei Song1, Yuchao Wang1
1School of Electrical Engineering, Xinjiang University, Urumqi 830017, China.
Sensors (Basel, Switzerland)
|November 25, 2023
概括
为医疗遥测和ISM应用开发了一种紧的双带植入式天线. 它实现了可靠的无线通信,续航里程高达9.7米,符合安全标准.
科学领域:
- 生物医学工程 生物医学工程
- 电磁学 电磁学 电磁学 电磁学
- 天线设计天线设计
背景情况:
- 可植入天线对于无线医疗遥测系统至关重要.
- 现有的天线通常面临尺寸,带宽和双带操作的限制.
- 需要紧,高效的天线,以无传输医疗数据.
研究的目的:
- 设计和验证一个紧的,双频,双极化的植入式天线.
- 在无线医疗遥测服务 (WMTS) 和工业,科学和医疗 (ISM) 频段中高效运行.
- 确保天线符合人类植入的安全规定.
主要方法:
- 特性模式方法 (CMM) 用于天线设计和优化.
- 采用了槽技术和高介电常数材料进行小型化.
- 使用三层人体组织模型模拟天线性能;用生物凝和碎猪肉进行验证.
主要成果:
- 实现了 47.4 mm3.4 的紧天线体积.
- 在1.4 GHz (WMTS) 和2.45 GHz (ISM) 的双频段运行证明.
- 测量的峰值增益为 -20.85 dBi (1.4 GHz) 和 -22.15 dBi (2.45 GHz);SAR值符合IEEE C95.1-1999的标准.
结论:
- 设计的天线适用于可植入的无线遥测系统.
- 该天线提供了微型化,双频段性能和安全性的平衡.
- 在模拟和物理人体组织模型中成功验证.
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