一个双频多线性极化可重新配置的天线,用于以身体为中心的无线通信系统
Dingzhao Chen1,2, Foxiang Liu3, Xuexuan Ruan1
1Yangtze Delta Region Institute (Quzhou), University of Electronic Science and Technology of China (UESTC), Quzhou 324000, China.
Sensors (Basel, Switzerland)
|June 27, 2025
概括
本研究介绍了一种新的双频,多线性偏振可重新配置的天线,用于以身体为中心的无线通信系统. 该天线支持医疗植入物通信服务和工业,科学和医疗频段,实现多功能体内数据链接.
科学领域:
- 电磁和天线 电磁和天线
- 无线通信系统无线通信系统
- 生物医学工程 生物医学工程
背景情况:
- 身体中心的无线通信系统 (BWCS) 需要紧的,可重新配置的天线来实现可靠的数据传输.
- 现有的天线经常在双频操作和极化多样性方面扎,这对于密集的室内环境至关重要.
研究的目的:
- 开发和验证一种新的双频多线极化可重新配置 (MLPR) 天线.
- 为了实现灵活的极化状态,在BWCS中提高性能.
主要方法:
- 一个五个单元的天线的设计,集成圆形补丁 (MICS带) 和直角条纹补丁 (ISM带).
- 使用PIN二极管进行可重新配置的极化状态 (0°,72°,144°,216°,288°).
- 整合了一种双线隔离结构,以最大限度地减少相互合并增强交叉极化水平 (XPL).
主要成果:
- 在MICS (401-409 MHz) 和ISM (2.34-2.53 GHz) 频段实现了双频段运行,S11 低于-10 dB.
- 证明了稳定的全向辐射模式.
- 在整个操作频段中,维护的XPLs优于-15.0dB.
结论:
- 拟议的MLPR天线在一个紧的形式因素中提供了强大的双频和多极化能力.
- 它是BWCS中植入式设备唤醒信号和车身数据链路的有希望的解决方案.
- 该设计解决了现代无线系统在天线性能方面的关键挑战.
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