This paper aims to investigate the usability of the nickel copper zinc ferrite with the composition Ni0.4Cu0.2Zn0.4Fe1.98O3.99 for the realization of high-temperature multilayer coils as discrete components and integrated, buried function units in low temperature cofired ceramics (LTCC).,LTCC tapes were cast and test components were produced as multilayer coils and as embedded coils in a dielectric tape. Different metallization pastes are compared. The properties of the components were measured at room temperature and higher temperature up to 250°C. The results are compared with simulation data.,The silver palladium paste revealed the highest inductance values within the study. The measured characteristics over a frequency range from 1 MHz to 100 MHz agree qualitatively with the measurements obtained from toroidal test samples. The inductance increases with increasing temperature and this influence is lower than 10%. The characteristic of embedded coils is comparable with this of multilayer components. The effective permeability of the ferrite material reaches values around 130.,The research results based on a limited number of experiments; therefore, the results should be verified considering higher sample sizes.,The results encourage the further investigation of the material Ni0.4Cu0.2Zn0.4Fe1.98O3.99 for the use as high-temperature ferrite for the design of multilayer coils with an operation frequency in the range of 5-10 MHz and operation temperatures up to 250°C.,It is demonstrated for the first time, that the material Ni0.4Cu0.2Zn0.4Fe1.98O3.99 is suitable for the realization of high-temperature multilayer coils and embedded coils in LTCC circuit carriers with high performance.

中文翻译：

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用于高温的多层铁氧体电感器

本文旨在研究成分为 Ni0.4Cu0.2Zn0.4Fe1.98O3.99 的镍铜锌铁氧体在实现高温多层线圈作为分立元件和低温共烧陶瓷中的集成埋入功能单元的可用性(LTCC)，LTCC 带被浇铸，测试组件被生产为多层线圈和嵌入在介电带中的线圈。比较了不同的金属化浆料。组件的性能在室温和高达 250°C 的高温下测量。将结果与模拟数据进行比较。,银钯膏在研究中显示出最高的电感值。在 1 MHz 到 100 MHz 的频率范围内测得的特性与从环形测试样品获得的测量结果定性一致。电感随温度升高而增加，这种影响低于 10%。嵌入式线圈的特性可与多层元件的特性相媲美。铁氧体材料的有效磁导率达到130左右。,基于有限数量实验的研究结果；因此，应考虑更大的样本量来验证结果。,结果鼓励进一步研究材料 Ni0.4Cu0.2Zn0.4Fe1.98O3.99 用作高温铁氧体，用于设计具有操作的多层线圈在 5-10 MHz 范围内的频率和高达 250°C 的工作温度。首次证明，材料 Ni0.4Cu0.2Zn0.4Fe1.98O3。