This work presents the effect of structural variation of strontium cobalt iron oxide on the electromagnetic properties for potential use of a perovskite structure in microwave applications. Various grades of strontium cobalt iron oxides were synthesized with varying concentration of Sr²⁺ and Co²⁺ using a sol–gel auto combustion route. X-ray diffraction confirmed the structural variation from cubic spinel (Fd-3m) to cubic primitive (Pm-3m) and finally to a perovskite structure. Electromagnetic properties were investigated using a vector network analyzer over a broad frequency range of 1–18 GHz. It was found that structural transition from spinel to perovskite resulted in a considerable increase in permittivity, together with significant decrease in permeability. Electromagnetic response and reflection loss indicates that the proposed composition is a suitable substrate material for miniaturized antenna applications.

这项工作提出了锶钴铁氧化物的结构变化对电磁性能的影响，从而潜在地将钙钛矿结构用于微波应用。合成了不同浓度的Sr ²⁺和Co ²⁺各种等级的锶钴铁氧化物使用溶胶-凝胶自动燃烧路线。X射线衍射证实了从立方尖晶石（Fd-3m）到立方原始晶体（Pm-3m）以及最终到钙钛矿结构的结构变化。使用矢量网络分析仪在1-18 GHz的宽频率范围内研究了电磁性能。发现从尖晶石到钙钛矿的结构转变导致介电常数显着增加，并且渗透率显着降低。电磁响应和反射损耗表明，所提出的组合物是用于小型化天线应用的合适基底材料。