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首页> 美国卫生研究院文献>Materials >Flexible Magnetic Polymer Composite Substrate with Ba1.5Sr1.5Z Hexaferrite Particles of VHF/Low UHF Patch Antennas for UAVs and Medical Implant Devices
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Flexible Magnetic Polymer Composite Substrate with Ba1.5Sr1.5Z Hexaferrite Particles of VHF/Low UHF Patch Antennas for UAVs and Medical Implant Devices

机译：VHF /低UHF贴片天线的Ba1.5Sr1.5Z六方铁氧体粒子的柔性磁性聚合物复合衬底用于无人机和医疗植入设备

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Our goal is to fabricate flexible magnetic polymer composites as antenna substrates for very high frequency (VHF)/low ultra high frequency (UHF) antennas for unmanned aerial vehicles (UAVs) and medical devices. Magnetodielectric materials, which have permeability ( ) similar to permittivity ( ), have attracted great attention, because they facilitate miniaturization of microwave devices while keeping or enhancing electromagnetic characteristics. Mechanically millled Ba Sr Co Fe O (Ba Sr Z) hexaferrite particles were used to increase permeability in the interesting frequency band. The microwave properties of Ba Sr Z composites were predicted and measured. Hansen’s zero-order analysis of antenna bandwidth and electromagnetic field simulation showed that the hexaferrite-based flexible composite could enhance a bandwidth and achieve the miniaturization of antennas as well. The magnetic antenna substrates can be a good solution to integrate antennas into the UAVs whose dimensions are comparable to or larger than communication wavelength.
机译：我们的目标是制造柔性磁性聚合物复合材料，作为用于无人飞行器（UAV）和医疗设备的超高频（VHF）/超超高频（UHF）天线的天线基板。具有与介电常数（）相似的磁导率（）的磁电介质材料引起了极大的关注，因为它们有助于保持或增强电磁特性的微波器件的小型化。机械研磨的Ba Sr Co Fe O（Ba Sr Z）六价铁氧体颗粒用于增加感兴趣频段中的磁导率。对Ba Sr Z复合材料的微波性能进行了预测和测量。汉森（Hansen）对天线带宽的零级分析和电磁场仿真表明，基于六价铁氧体的柔性复合材料可以提高带宽并实现天线的小型化。磁性天线基板可以是将天线集成到尺寸等于或大于通信波长的UAV中的良好解决方案。

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