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高功率密度小型化VLF天线与纳米晶核用于增强场强度

Wencheng Ai¹, Huaning Wu¹, Lin Zhao¹

¹School of Electrical Engineering, Naval University of Engineering, Wuhan 430030, China.

Nanomaterials (Basel, Switzerland)

|July 25, 2025

概括

本研究介绍了一种紧,高效的磁环天线,用于非常低频 (VLF) 通信. 它实现了千瓦级功率和扩展通信范围,克服了传统VLF天线的局限性.

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:

微型非常低频 (VLF) 天线的功率和辐射效率都很低.
现有的VLF天线设计对于需要高功率和高范围的实际应用具有显著的限制.

研究的目的:

为VLF应用开发一个高辐射场强度的磁环天线.
为了克服小型VLF天线在功率容量和辐射效率方面的局限性.

主要方法:

采用高透性纳米晶体 toroidal 核心,其尺寸优化,以提高有效透性.
采用带有利兹线的形绕线,以减少泄漏并增强磁感应.
集成了一种级联LC共振网络和铁圆形变压器,用于电流放大和电力处理.
包含一个高压隔离电容器,以阻止直流偏差噪声并确保稳定的功率传输.

主要成果:

实现了千瓦级输入功率 (1200W稳定传输) 和比传统天线高出6倍的功率容量.
通过共振网络和巴隆变压器证明了输入电流的20倍放大.
在120米处达到47.32dBμA/m的磁场强度,在7.8kHz处达到1446米的通信距离.
成功设计了一种直径51厘米的紧型天线,能够提供千瓦级VLF有效辐射.

结论:

拟议的纳米晶磁环天线为VLF通信提供了高效的解决方案.
这种设计在功率,效率和通信范围方面显著提高了传统VLF天线的性能.
该天线适用于矿山通信和地质勘探等专业应用.

关键词:

增强辐射辐射的强化辐射.高功率容量的高功率容量.纳米晶体合金的合金.非常低频的频率非常低的频率.

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