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Updated: Sep 13, 2025

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一个增强的循环极化织天线使用一个metasurface和槽型的地面外体通信

Yong-Deok Kim¹, Tu Tuan Le¹, Tae-Yeoul Yun¹

¹Department of Electronic Engineering, Hanyang University, Seoul 04763, Republic of Korea.

|July 30, 2025

概括

这项研究引入了一种增强的循环极化织天线,使用一个超表面和插槽图案的地面,用于5.8GHzISM频段的体外通信. 灵活的可穿戴天线表现出卓越的性能,即使在曲下,也符合安全标准.

科学领域:

电磁和天线电磁和天线
可穿戴技术可穿戴技术
超材料是指一种超材料.

背景情况:

外体通信系统需要具有强大的循环极化 (CP) 辐射的天线.
现有的织天线经常在带宽,增益和曲下的性能方面扎.
超表面 (MS) 和槽型地面 (SPG) 为天线性能提升提供了潜力.

研究的目的:

为5.8GHzISM频段应用提供增强的CP全织天线.
调查MS和SPG对天线性能的综合影响,包括带宽,增益和辐射效率.
为了评估天线在空白空间,人体附近和曲条件下的性能.

主要方法:

一个3x3超表面 (MS) 设计用于将线性偏振 (LP) 波转换为CP.
采用带有角截断插槽的插槽模式地面 (SPG) 来增强轴向比带宽 (ARBW).
该天线是使用导电性织品和料制造的,模拟在曲下,并在自由空间和人体环境中进行测量.

主要成果:

拟议的天线实现了36.3%的测量阻抗带宽 (IBW) 和18%的ARBW.
记录了6.39dBic的峰值增益和64.7%的辐射效率.
模拟的特定吸收率 (SAR) 符合美国和欧盟的安全标准,曲模拟显示性能降低最小.

结论:

MS和SPG的新组合有效地产生和增强织天线的CP特性.
拟议的天线为可穿戴应用提供了IBW,增益和辐射效率的显著改进.
该天线表现出强大的性能和对外通信系统的安全合规性.

关键词:

这是一个CP天线天线.从LP转CP转换器的使用.这就是为什么SAR SAR SAR.metasurface 地表的表面是什么在人体之外的身体.带有插槽图案的地面.可穿戴式天线天线

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