增强收益的宽带CPW天线基于人工磁导体导体
May AboEl-Hassan1, A E Farahat2, K F A Hussein2
1Microwave Engineering Department, Electronics Research Institute (ERI), Cairo, Egypt. mayaboelhassan@yahoo.com.
Scientific reports
|February 27, 2025
概括
这项研究引入了一种新的平面八边形天线,具有倒置的U槽和人工磁导体 (AMC) 反射器,用于增强单向辐射. 综合系统在广泛的频段中实现了高收益和高效率.
科学领域:
- 电磁学和天线理论
- 甲基材料和甲基表面.
- 微波工程 微波工程
背景情况:
- 天线的增益增强通常涉及反射器,如导电表面 (ECS) 或人工磁导体 (AMC) 表面.
- ECS反射器需要显著的天线高度,以防止由于π相位转移造成的破坏性干扰.
- AMCS超表面提供0°相反射,通过允许天线靠近放置,使得低档天线系统成为可能.
研究的目的:
- 提出和演示一个低调的宽带天线系统,用于高收益的单向辐射.
- 设计一个平面八角形形状的单极天线,并集成一个新的AMC反射器.
- 通过模拟和实验测量来验证拟议的天线-AMC系统的性能.
主要方法:
- 一个平面八角形单极天线的设计,在罗杰斯RT5880基板上由共平面波导 (CPW) 提供反转的U槽.
- 在罗杰斯RO4003C基板上的金属补丁组成的周期性AMC超表面反射器的开发.
- 拟议的天线和AMC反射器的制造,用于实验性性能评估.
主要成果:
- 集成的天线和AMC系统在3.56.5GHz频段实现了[公式:参见文本]的实现收益.
- 拟议系统的总效率被证明大于[公式:参见文本].
- 与传统的ECS反射器相比,AMC反射器由于其0°相反射特性,可以实现较低的配置.
结论:
- 拟议的平面天线和AMC反射器组合有效地产生具有高收益和效率的单向辐射.
- 低的设计有利于在空间有限的实际应用.
- 结果证实了使用AMC超表面来提高宽带应用中的天线性能的可行性.
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