一个基于Boifot型OMT的全W波段多极化喇天线
Yun Zhao1, Bo Zhu1, Jiangqiao Ding1,2
1Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Electronic & Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China.
Micromachines
|March 28, 2024
概括
本文介绍了一种宽带多极化方角天线,用于W频段应用,使用直角模式传感器 (OMT). 该天线支持多重偏振,并使用一种新的CNC分层制造方法,以实现高效的生产.
科学领域:
- 电磁学和波浪传播
- 天线理论和设计.
- 微波工程 微波工程
背景情况:
- 在多极化天线中,直角模式传感器 (OMT) 是至关重要的.
- 宽带天线对于先进的通信系统至关重要.
- 现有的W波段天线设计经常面临多极化和制造方面的挑战.
研究的目的:
- 为整个W频段 (75-110 GHz) 开发一个宽带多极化方角角天线.
- 为了使水平,垂直,左侧圆形和右侧圆形偏振的同时辐射.
- 为天线提出和验证计算机化数控 (CNC) 层制造方法.
主要方法:
- 一个与Boifot型OMT集成的方角天线的设计.
- 使用旋转和扭转的波导来保持船平面的一致性.
- 包含一个相位变换器,以保持跨极化相位连贯性.
- 采用CNC层制造技术,将天线分成三个垂直层.
主要成果:
- 该天线原型在W频段的所有极化模式中实现了超过10dB的返回损失.
- 对LHCP和RHCP模式的轴比 (AR) 低于3.5dB.
- 在110GHz时,最大的天线增益达到18.8dBi.
- 测量结果与模拟预测非常相匹配.
- 通过错误分析证实了分层加工的可行性.
结论:
- 开发的W波段多极化天线成功地满足了各种极化模式的性能要求.
- 拟议的CNC层制造方法对于生产复杂的天线结构是可行的和有效的.
- 这项工作为需要多极化能力的先进W频段通信和传感应用提供了有前途的解决方案.
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