基于模拟的方法来匹配充满电介质的圆形波导孔径
Songyuan Xu1, Jiwon Heo1, Byoung-Kwon Ahn2
1School of Electric and Computer Engineering, Chungbuk National University, Cheongju 28644, Republic of Korea.
Sensors (Basel, Switzerland)
|February 10, 2024
概括
缩小的介电充满圆形波导需要阻抗匹配. 本研究介绍了一种基于模拟的方法,使用介电环来实现这些天线的宽带光圈匹配.
科学领域:
- 电磁学和天线理论
- 材料科学在RF工程中的材料科学
背景情况:
- 圆形波导孔是天线的基本元素.
- 介电填充使天线小型化成为可能,但增加了光圈反射.
- 阻抗匹配对于介电充满天线的高效运行至关重要.
研究的目的:
- 提出一种新的基于模拟的方法,用于对介电充满圆形波导天线的光圈匹配.
- 为了证明在广泛的频率范围内有效的阻抗匹配.
- 分析介电性质对匹配性能的影响.
主要方法:
- 使用模拟工具来分析和优化光圈匹配.
- 在孔口使用多段介电环负荷.
- 研究介电常数 (ε) 从1.8到10.
主要成果:
- 在介电充满圆形波导的八度带宽上实现阻抗匹配.
- 显著降低了反射系数,从 -6.0dB到 -0.9dB (无匹配) 下降到 -20.4dB到 -10.0dB (匹配) 对于e ≥5.
- 匹配是有效的,从TE11模式切断频率以上开始.
结论:
- 拟议的介电环负荷是一种有效的方法,用于使充满介电的圆形波导与宽带光圈匹配.
- 基于模拟的方法为微型天线提供了可行的设计策略.
- 该技术提供了一种简单而又创新的解决方案,用于提高天线性能.
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