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紧型和极化不敏感的卫星频段完美的元材料吸收器,用于有效的电磁通信系统

Md Salah Uddin Afsar^1,2, Mohammad Rashed Iqbal Faruque¹, Sabirin Abdullah¹

¹Space Science Centre (ANGKASA), Institute of Climate Change (IPI), Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia.

Materials (Basel, Switzerland)

|July 14, 2023

概括

这项研究介绍了一种新型的三频段元材料吸收器,在S和C频段具有高吸收率. 极化不敏感的设计是电信系统的理想选择,为卫星和雷达应用提供了独特的解决方案.

科学领域:

电磁学电磁学电磁学电磁学
材料科学材料科学材料科学
超材料是指一种超材料.

背景情况:

超材料吸收器对于电磁波操纵至关重要.
开发具有高效率的宽带或多带吸收器是一个持续的挑战.
现有的设计往往缺乏极化不敏感性或是重的.

研究的目的:

设计和展示一个商业上可行的,三频段的元材料吸收器.
为了实现电信应用的特定频率的高吸收率.
为了创建一个紧的,极化不敏感的元材料吸收器.

主要方法:

设计了一种具有对称圆圈的金属-电流-金属结构和带有分裂环共振器 (SRR) 的十字形金属元件.
使用试错方法优化了单元细胞参数.
使用基于有限集成技术 (FIT) 的3D模拟 (CST微波工作室) 和使用微波网络分析仪 (Agilent N5227 PNA) 的实验测量.

主要成果:

提出的完美元材料吸收器 (PMA) 呈现出三种不同的高吸收率共振峰值:在3.03 GHz时为99.84%,在5.83 GHz时为99.03%,在7.23 GHz时为98.26%.
模拟结果通过实验测量得到验证,显示出良好的一致性.
吸收器在S和C频段显示出极化不敏感.

结论:

一个独特的,紧的,高效的三带元材料吸收器已经成功设计,模拟和实验验证.
拟议的PMA适用于需要全时原始卫星和雷达料吸收的电信系统.
与现有的当代研究相比,该设计提供了更高的性能和更小的尺寸.

关键词:

电导率是指电导的电导率.透性透性的卫星频段卫星频段卫星频段导波器是指导波的导波器.

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