Breakthrough advances in low loss, tunable dielectric materials
Breakthrough advances in low loss, tunable dielectric materials
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DOI：
10.1007/s100190050098
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发表时间：
1999-04
期刊：
影响因子：
--
通讯作者：
L. Sengupta;S. Sengupta
中科院分区：
文献类型：
--
作者：
L. Sengupta;S. Sengupta
低损耗、可调谐介电材料对于相控阵天线和其它器件应用是重要的。各种复合材料的钡锶钛氧化物（BSTO）结合其他非电活性氧化物陶瓷已制定了这样的用途。这些复合材料的介电常数和损耗角正切已被降低，以提高整体阻抗匹配，从而降低设备的整体插入损耗。该材料已制成块状陶瓷，厚膜和薄膜的形式，以解决广泛的频率应用。本文将讨论这些复合材料的材料制备方法和电子性能。
Low loss, tunable dielectric materials are important for phased array antenna and other device applications. Various composites of barium strontium titanium oxide (BSTO) combined with other nonelectrically active oxide ceramics have been formulated for such uses. The dielectric constant and the loss tangents of these composites have been reduced to enhance the overall impedance matching and thereby lowering the overall insertion loss of the device. The material has been fabricated in bulk ceramic, thick film, and thin film form to address a broad range of frequency applications. The material fabrication methods and the electronic properties of these composites will be discussed in this article.