极化和带宽可重新配置的毫米波环天线的成本效益设计
Rawad Asfour1, Salam K Khamas1, Edward A Ball1
1Communications Research Group, Department of Electronic and Electrical Engineering, University of Sheffield, Mappin Steet, Sheffield S1 3JD, UK.
Sensors (Basel, Switzerland)
|December 23, 2023
概括
本研究介绍了用于毫米波 (mmWave) 系统的可重新配置的圆环天线,使用PIN二极管提供可调节的极化和带宽. 该设计实现了三个操作模式,包括循环和线性偏振,具有验证的性能.
科学领域:
- 电气工程 电气工程
- 天线理论天线理论
- 无线通信无线通信
背景情况:
- 毫米波 (mmWave) 通信系统需要用于高带宽应用的先进天线解决方案.
- 可重新配置的天线对于适应动态通道条件和各种通信需求至关重要.
- 现有的天线设计往往面临着极化灵活性和带宽控制的局限性.
研究的目的:
- 建议为毫米波系统提供单次供应的可重新配置的循环环天线.
- 为了证明天线能够在不同的极化状态 (RHCP,LHCP,LP) 和带宽之间切换.
- 通过模拟和测量来验证设计的性能.
主要方法:
- 集成两个PIN二极管来控制极化和带宽.
- 利用单一的直流偏移网络作为射频窒息器,以简化设计和减少损失.
- 采用平面偏移网络与共平面条形线 (CPS) 消除一次性元素.
主要成果:
- 实现了三种不同的操作模式:宽带RHCP,宽带LHCP和双窄带LP.
- 经过证明的RHCP/LHCP在28 GHz运行,阻抗带宽为12.9%,轴向比带宽为8%,增益为7.5dBic.
- 在27 GHz和29 GHz获得的LP运行,最大增益为7.2dBic.
- 模拟结果显示与测量结果密切一致.
结论:
- 拟议的天线设计为毫米波应用提供了多功能极化和带宽可重配置.
- 平面和简化的配置,利用PIN二极管和CPS,确保高效和强大的性能.
- 经过验证的设计为下一代无线通信系统提供了有价值的解决方案.
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