一种设计极化可重新配置天线的方法,具有简单的开关机制和紧的尺寸特征
Thai Nguyen-Dinh1, Tan Dao-Duc2, Dinh Nguyen-Quoc3
1Faculty of Radio Electronics Engineering, Le Quy Don Technical University, Hanoi, 11917, Vietnam.
Scientific reports
|April 18, 2025
概括
这项研究介绍了一种紧的可重新配置的天线,能够使用仅两个二极管在线性和圆形偏振之间切换. 新的设计提供多个极化模式,对性能影响最小.
科学领域:
- 电气工程 电气工程
- 电磁学 电磁学 电磁学 电磁学
- 天线理论天线理论
背景情况:
- 可重新配置的天线对于现代无线通信系统至关重要,能够适应各种环境和标准.
- 在单个紧的天线中实现多个极化状态 (线性,圆形) 通常需要复杂的输送网络和众多的切换元件.
研究的目的:
- 介绍一款具有简单偏振切换机制的可重新配置天线设计.
- 为了证明天线能够产生单向光束,使用线性极化 (LP),左边循环极化 (LHCP) 和右边循环极化 (RHCP) 模式.
- 为了实现这些功能在一个紧的形状因子与最小的组件数.
主要方法:
- 拟议的天线使用2x2数组的寄生元素作为主要的辐射孔.
- 通过两个PIN二极管控制的可切换的养网络,用于操纵激发源的极化.
- 偏移电路对天线性能的影响通过集成的可切换养网络被最小化.
主要成果:
- 该天线成功地实现了多个极化配置 (LP,LHCP,RHCP),仅使用两个PIN二极管.
- 在所有极化状态中观察到从2.44到2.47 GHz的一致的操作带宽.
- 天线实现了大约4.8dBi的宽侧增益.
结论:
- 开发的可重新配置天线为多极化无线应用提供了紧而高效的解决方案.
- 它通过减少二极管数量和简化结构来实现多样化的极化状态,优于现有的设计.
- 该设计最大限度地减少了偏差电路的影响,确保了不同模式的稳定天线运行.
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