Microwave absorbers are an important topic of interest to mitigate electromagnetic interference. Here, we have investigated electromagnetic absorption properties of Ba_0.5Sr_0.5Co_xIn_xFe_12−2xO₁₉ hexaferrite prepared by the conventional ceramic method. M-type hexagonal structure in the compositions was confirmed from x-ray diffraction analysis. The role of Co²⁺ and In³⁺, thickness of composition and frequency on the electromagnetic absorption in the ferrite compositions has been explored from 8.2 GHz to 12.4 GHz. It was found that both Co²⁺-In³⁺ increased microwave/electromagnetic absorption with broad bandwidth, decreased the thickness and enhanced impedance matching. The reflection loss of −39.99 dB was noted in the composition x = 0.2 for the thickness of 1.6 mm and a frequency of 11.14 GHz. The results conclude that investigated compositions of Ba_0.5Sr_0.5Co_xIn_xFe_12−2xO₁₉ ferrite ameliorate absorber applications.

微波吸收器是减轻电磁干扰的重要关注主题。在这里，我们研究了通过常规陶瓷方法制备的Ba _0.5 Sr _0.5 Co _x In _x Fe _{12-2 x} O ₁₉六方铁氧体的电磁吸收性能。通过X射线衍射分析确认了组合物中的M型六边形结构。在8.2 GHz至12.4 GHz范围内，探索了Co ²⁺和In ³⁺，成分的厚度和频率对铁氧体成分中电磁吸收的作用。发现Co ²⁺ -In ³⁺具有宽带宽的增加的微波/电磁吸收，减小的厚度和增强的阻抗匹配。 对于1.6mm的厚度和11.14GHz的频率，在组成x＝ 0.2中注意到-39.99dB的反射损耗。结果得出结论，研究了Ba _0.5 Sr _0.5 Co _x In _x Fe _{12-2 x} O ₁₉铁氧体改善吸收剂应用的组成。