一个新的理论表达式,用于铁加载的CW照明器的阻抗
Peng Chen1, Yangzhen Qin1, Fulin Wu1
1School of Electronic Engineering, Xidian University, Xi'an 710071, China.
Sensors (Basel, Switzerland)
|September 13, 2025
概括
这项研究引入了一个新的公式来计算费里特载荷环形天线的阻抗,这对于电磁脉冲 (EMP) 评估中的连续波 (CW) 照明器设计至关重要. 这些发现为设计这些关键组件提供了更准确,更有效的方法.
科学领域:
- 电磁学 电磁学 电磁学 电磁学
- 天线理论天线理论
- 材料科学 材料科学 材料科学
背景情况:
- 连续波 (CW) 照明器对于电磁脉冲 (EMP) 敏感性评估至关重要.
- 对于循环天线的现有理论模型不考虑铁材料负载.
- 铁矿负载对天线阻抗和性能特征产生重大影响.
研究的目的:
- 开发一种明确的理论公式,用于载有铁材料的圆环天线的输入阻抗.
- 为了研究铁载荷循环天线中输入阻抗的变化规律性.
- 为CW照明器设计提供计算方法.
主要方法:
- 导出了一个新的明确的理论公式,用于铁载荷环天线阻抗.
- 开发一个非对称的数值计算方法和一个封闭形式的解决方案.
- 使用全波模拟 (CST Studio Suite) 进行验证.
主要成果:
- 新的公式准确地预测了带铁的循环天线的输入阻抗,最大误差低于0.99%.
- 费里特加载显著降低并平滑了各种正常化半径的输入阻抗.
- 输入阻抗分析显示,增加铁矿厚度会降低Q因子,而增加循环周长会增加Q因子.
结论:
- 为CW照明器输入阻抗设计建立了一个快速而准确的计算方法.
- 这项研究提供了关于费里特载荷环形天线的性能的见解.
- 这项工作为未来天线工程研究提供了宝贵的工具.
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