概括
这项研究介绍了一种紧的,高增益的超表面天线,用于毫米波 (mmWave) 雷达和5G频段. 它的设计允许频率重新配置,为集成的通信和传感系统提供了潜力.
科学领域:
- 电气工程 电气工程
- 天线理论天线理论
- 超材料是指一种超材料.
背景情况:
- 毫米波 (mmWave) 频率对于下一代无线通信和雷达传感至关重要.
- 现有的天线在mmWave应用中通常面临尺寸,增益和频率灵活性方面的限制.
- 超表面为操纵电磁波提供了一个有希望的方法,以提高天线性能.
研究的目的:
- 推出一种创新的,紧的,高收益的超表面天线.
- 为了使24 GHz毫米波雷达频段和5G n257/n258频段同时运行.
- 为了证明频率可重新配置用于多功能应用.
主要方法:
- 宽带堆叠补丁天线的设计与双层元表面集成.
- 使用一个简化的相位补偿公式来实现地表单元细胞分布.
- 制造一个紧的天线料器 (6毫米x6毫米) 和一个65毫米x65毫米的超表面雷多姆.
- 对天线性能和频率转移能力的实验验证.
主要成果:
- 从23.5GHz到29.1GHz实现了广泛的操作带宽.
- 在低频带和高频带分别获得了19.7 dBi和19.5 dBi的高最大增益.
- 已证明频率可重新配置,每1毫米调整料元 - 地表距离,会发生750MHz的变化.
结论:
- 拟议的超表面天线为毫米波应用提供了紧且高收益的解决方案.
- 该设计具有显著的频率重新配置性,提高了其适应性.
- 这项技术在联合通信和雷达传感系统中具有强大的实际实施潜力.
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