高收益多频段循环极化可穿戴漏电波拉链MIMO天线天线
Tale Saeidi1,2, Sahar Saleh1,3, Sarmad Nozad Mahmood4
1WiSAR Lab, Atlantic Technological University (ATU), Letterkenny, Co. Donegal, F92 FC93, Ireland.
Heliyon
|July 12, 2024
概括
这项研究介绍了一种紧的,多频段的可穿戴天线,使用一个集成到服装中的拉链. 这种创新的设计为战场通信提供了强大的性能,包括无线局域网和5G应用.
科学领域:
- 电磁和天线 电磁和天线
- 可穿戴技术可穿戴技术
- 织品天线 织物天线
背景情况:
- 现有的可穿戴天线经常面临小型化,多频段操作和与服装集成的挑战.
- 对可靠,以身体为中心的无线通信系统的需求正在增加,特别是在战场等苛刻的环境中.
- 基于织品的天线提供了与服装无集成的潜力,但需要仔细设计性能和隔离.
研究的目的:
- 提出和验证一个小型化的,多频段的,四端口可穿戴的多输入多输出 (MIMO) 天线.
- 调查集成服装部件的使用,特别是拉链,作为功能性天线元件.
- 评估天线的性能,包括隔离,增益,带宽和多样性特征,用于以身体为中心的无线通信.
主要方法:
- 使用牛仔基板和Shieldit超级织物导体设计一个漏电波织天线 (LWTA).
- 在天线端口之间集成金属和乙烯基聚合物塑料 (APP) 拉链,以提高隔离和性能.
- 模拟和测量天线在L,C,S和X频段的性能,包括多样性指标 (ECC,DG) 和特定吸收率 (SAR).
主要成果:
- 在强大的端口隔离 (< -23 dB) 的情况下,实现了12.15dBi的最大增益.
- 演示了覆盖L,C,S和X频段的循环极化 (CP) 的多频段操作.
- 报告的多样性增益 (DG) 大于9.65dB和低的特定吸收率 (SAR),在曲和拉链操纵下具有稳定的性能.
结论:
- 拟议的拉链集成的织天线是以身体为中心的无线通信的可行解决方案,特别是用于战场应用.
- 该设计提供了出色的隔离,增益和带宽,满足无线局域网 (WLAN) 和第五代 (5G) 系统的要求.
- 天线对曲和拉链状态的强度使其适合集成到功能性可穿戴设备中.
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