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Tunable dielectrics for microwave applications

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9 Author(s)
Giere, A. ; Wireless Communications / Microwave Engineering, Technische Universitÿt Darmstadt, Merckstrasse 25, 64283, Germany ; Zheng, Y. ; Maune, H. ; Sazegar, M.
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This paper gives a short introduction into tunable dielectrics for microwave applications based on nematic liquid crystal and Barium-Strontium-Titanate (BST) thin- and thick-films. Due to their tuning voltage dependent electromagnetic properties, both are very promising material candidates for tunable passives in the microwave and millimeter-wave regions. For applications, such as frequency-agile communications and sensor systems we illustrate the challenges of optimization BST films based on a multi-scale view for material, processing, device and application design.

Published in:

Applications of Ferroelectrics, 2008. ISAF 2008. 17th IEEE International Symposium on the  (Volume:2 )

Date of Conference:

23-28 Feb. 2008