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具有圆形/线性偏振的灵活天线,用于宽带生物医学无线通信
Mohammed E Yassin1, Khaled F A Hussein2, Qammer H Abbasi3
1Electronics and Communications Engineering Department, Akhbar Elyom Academy, 6th of October City 12573, Egypt.
Sensors (Basel, Switzerland)
|July 8, 2023
概括
这项研究引入了一种灵活的G形天线用于生物医学通信,为体外和体内设备提供双模式极化. 它实现了宽带阻抗匹配和循环极化,以实现可靠的无线数据传输.
科学领域:
- 电磁和天线 电磁和天线
- 生物医学工程 生物医学工程
- 无线通信系统无线通信系统
背景情况:
- 外体和内体通信系统需要具有特定偏振和宽带宽能力的天线.
- 现有的天线设计可能无法满足各种生物医学应用的双模极化要求.
- 灵活的天线对于可穿戴和可植入的生物医学设备至关重要.
研究的目的:
- 提出和研究一种新的宽带,低调的G形灵活天线用于生物医学通信.
- 为了实现双模极化:WiMAX/WLAN的循环极化 (CP) 和内置生物传感器的线性极化.
- 为了优化天线性能来实现阻抗匹配,轴向比带宽,辐射效率和收益.
主要方法:
- 在柔性基板上设计一个G形和反转的G形辐射条.
- 使用共平面波导 (CPW) 进行单面制造的料机制.
- 通过电磁模拟和实验测量进行性能调查.
主要成果:
- 在5-6 GHz范围内 (WiMAX/WLAN) 实现了18%的3dB轴比 (AR) 带宽,用于循环偏振.
- 已证明117%的阻抗匹配带宽从5-19 GHz用于体内生物传感器通信.
- 在紧的尺寸 (25 × 27 × 0.13 mm3) 中,获得了最大增益5.37 dBi和98%的辐射效率.
结论:
- 拟议的G形灵活天线有效地支持双模极化,用于多功能生物医学通信.
- 天线的宽带阻抗匹配和CP性能使得可靠的机身外和机身内无线链接成为可能.
- 该设计为下一代可穿戴和可植入的生物医学系统提供了一个有希望的解决方案.
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