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一个紧的按天线与双带和双极化可穿戴的身体区域网络
Xue-Ping Li1,2, Zhen-Yong Dong1, Xue-Qing Yang1
1School of Optoelectronic Engineering, Henan Normal University, Xinxiang 453600, China.
Micromachines
|January 28, 2026
概括
本研究介绍了一种用于无线体域网络 (WBAN) 的紧型,双带,双极化按天线. 它为体内和体外通信提供了强大的性能,满足可穿戴应用的安全标准.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 生物医学工程 生物医学工程
背景情况:
- 无线身体区域网络 (WBAN) 需要高效的天线来实现可靠的通信.
- 现有的天线往往难以实现双频段运行,并且对于各种通信场景所需的极化多样性.
- 工业,科学和医疗 (ISM) 频段 (2.45 GHz和5.8 GHz) 对WBAN应用至关重要.
研究的目的:
- 为WBANs设计和验证一个紧的,双频,双极化按天线.
- 为了实现体内和体外通信的明确辐射模式和极化.
- 确保天线符合可穿戴设备的安全规定.
主要方法:
- 在天线设计中,用于低频段的顶负荷单极和用于高频段的交叉双极.
- 一个原型天线的制造.
- 通过自由空间和车身测量来表征性能.
- 在人类模型上进行特定吸收率 (SAR) 模拟.
主要成果:
- 该天线在2.45GHz和5.8GHzISM频段有效运行.
- 实现了18.3%的分数带宽与线性偏振 (全向) 在体内通信.
- 实现了66.4%的分数带宽,使用循环极化 (宽侧) 来实现体外通信.
- 原型测量验证了双频带和双极化性能.
- SAR模拟证实了符合安全限制的情况.
结论:
- 开发的按天线由于其紧的尺寸,双频/双极化功能以及安全合规性,适合WBAN应用.
- 天线的设计使可穿戴系统的通用通信策略成为可能.
- 这项工作有助于推进用于医疗保健和个人监控的可靠和安全的无线通信.
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