DataVXInternational Journal of Applied Ceramic TechnologyPaper
journal article·2015-01

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

Christian Kohler, Mohammad Nikfalazar, Andreas Friederich, Alex Wiens, Mohsen Sazegar, Rolf Jakoby, Joachim R. Binder

International Journal of Applied Ceramic Technology· Volume 12· Issue S1
Publisher page
Source abstract

Abstract

The composite system Ba 0.6 Sr 0.4 TiO 3 –ZnO–B 2 O 3 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°/ dB at 1.72 GHz for the phase shifter.
Source: crossref · Quality: baseline

Research context

Composites

OpenAlex topics: Acoustic Wave Resonator Technologies · Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute for Applied Materials (IAM‐WPT) Karlsruhe Institute of Technology 76344 Eggenstein‐Leopoldshafen Germany

Institute for Microwave Engineering and Photonics (IMP) Technische Universität Darmstadt 64283 Darmstadt Germany

References (20)

Show source-provided references
1. 10.1007/978-1-84882-507-910.1007/978-1-84882-507-9 ↗
2. Maune H. · 2011 · 5
3. 10.1007/s00542-011-1235-910.1007/s00542-011-1235-9 ↗
4. Sazegar M. · 2011 · 1
5. 10.1109/LMWC.2011.216261510.1109/LMWC.2011.2162615 ↗
6. 10.1109/TMTT.2011.217198510.1109/TMTT.2011.2171985 ↗
7. 10.1016/S0955-2219(01)00362-410.1016/S0955-2219(01)00362-4 ↗
8. 10.1016/S0955-2219(03)00171-710.1016/S0955-2219(03)00171-7 ↗
9. 10.1016/j.jeurceramsoc.2012.06.02110.1016/j.jeurceramsoc.2012.06.021 ↗
10. 10.1109/MWSYM.2013.669754810.1109/MWSYM.2013.6697548 ↗
11. 10.1111/j.1744-7402.2011.00706.x10.1111/j.1744-7402.2011.00706.x ↗
12. 10.1016/j.jeurceramsoc.2007.08.00810.1016/j.jeurceramsoc.2007.08.008 ↗
13. 10.1002/pssa.20112727610.1002/pssa.201127276 ↗
14. 10.1111/j.1744-7402.2008.02265.x10.1111/j.1744-7402.2008.02265.x ↗
15. 10.1016/j.jeurceramsoc.2009.07.00310.1016/j.jeurceramsoc.2009.07.003 ↗
16. 10.1111/ijac.1211610.1111/ijac.12116 ↗
17. 10.1007/s10832-009-9580-010.1007/s10832-009-9580-0 ↗
18. 10.1515/FREQ.2008.62.3-4.4710.1515/FREQ.2008.62.3-4.47 ↗
19. 10.1109/RWS.2006.161518010.1109/RWS.2006.1615180 ↗
20. 10.1109/TMTT.2006.88932810.1109/TMTT.2006.889328 ↗