Fully Screen-Printed Tunable Microwave Components Based on Optimized Barium Strontium Titanate Thick Films

被引：21
|
作者：
Kohler, Christian [1 ,2 ]
Friederich, Andreas [1 ,2 ]
Nikfalazar, Mohammad [2 ]
Wiens, Alex [2 ]
Sazegar, Mohsen [2 ]
Jakoby, Rolf [2 ]
Binder, Joachim R. [1 ]
机构：
[1] Karlsruhe Inst Technol, Inst Appl Mat IAM WPT, D-76344 Eggenstein Leopoldshafen, Germany
[2] Tech Univ Darmstadt, Inst Microwave Engn & Photon IMP, D-64283 Darmstadt, Germany
来源：
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2015年 / 12卷
关键词：
MICROSTRUCTURE;
D O I：
10.1111/ijac.12276
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The composite system Ba0.6Sr0.4TiO3-ZnO-B2O3 for thick film preparation has been modified via copper-fluorine codoping of BST to make it suitable for the fabrication of co-fired metal-insulator-metal (MIM) components. Based on the resulting improvement of the thick films, MIM varactors and phase shifters were produced by subsequent screen-printing of silver and BST pastes as well as co-firing. Microstructural investigations showed the compatibility of silver and BST with neither chemical reaction nor cracking of the layers. The microwave characterization revealed good results regarding tunability and quality factor of the varactors and high figure of merit of 70 degrees/dB at 1.72GHz for the phase shifter.
引用
收藏
页码：E96 / E105
页数：10
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