Tunable composites with low permittivity for microwave applications

用于微波应用的低介电常数可调谐复合材料

• 批准号: 234229300
• 负责人: Dr. Joachim Rudolf Binder
• 金额: --
• 依托单位: Institut für Angewandte Materialien (IAM)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/234229300?language=en
• 关键词: Tunable; composites; low; permittivity; microwave

The goal of the project is the investigation and the development of inorganic composite materials for microwave applications having similar tunability compared to a BST thick film with the property of less dielectric losses and lower permittivity. Combinations of a tunable ferroelectric, namely Barium-Strontium-Titanate (Ba0,6Sr0,4TiO3), and a non-tunable dielectric having low permittivity and little losses namely Magnesium Borate (Mg3B2O6) are produced and characterized to reach the goal. The main focus of this extended project is the systematic investigation of the promising approach of coating composites as well as of ternary composites. One aspect is the further development of the simulation methods in order to model the dielectric properties of the composites. The following objectives are part of the working program: 3D electro-magnetic simulation of non-linear electrical tunable composite materials, development and optimization of coated composites, realization and modelling of ternary composite materials.

该项目的目标是研究和开发用于微波应用的无机复合材料，与介电损耗和介电常数较低的BST厚膜相比，具有类似的可调性。将可调谐铁电材料BaO，6Sr0，4TiO_3和低介电常数、损耗小的非调谐介质材料硼酸镁(Mg_3B_2O_6)进行了组合，并对其进行了表征。这一扩展项目的主要重点是系统地研究涂层复合材料和三元复合材料的有前途的方法。一方面是为了模拟复合材料的介电性能，进一步发展了模拟方法。以下目标是工作计划的一部分：非线性电可调复合材料的三维电磁模拟，涂层复合材料的开发和优化，三元复合材料的实现和建模。

项目成果

Suppression of Acoustic Resonances in BST-Based Bulk-Ceramic Varactors by Addition of Magnesium Borate

• DOI: 10.3390/cryst11070786
• 发表时间: 2021-07
• 期刊: Crystals
• 影响因子: 2.7
• 作者: Prannoy Agrawal;D. Kienemund;D. Walk;Stipo Matic;N. Bohn;Kevin Häuser;Thomas Fink;M. Abrecht;Walter Bigler;J. Binder;R. Jakoby;H. Maune

Sintering behavior and electrical properties of the paraelectric/dielectric composite system BST/MBO

• DOI: 10.1016/j.jeurceramsoc.2021.07.008
• 发表时间: 2021-08-27
• 期刊: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
• 影响因子: 5.7
• 作者: Haeuser, K.;Azmi, R.;Binder, J. R.
• 通讯作者: Binder, J. R.