微波和毫米波应用的Ba(X1/3Ta2/3)O3复合钙钛矿

CAS 2012 (International Semiconductor Conference) Pub Date : 2012-10-01 DOI:10.1109/SMICND.2012.6400778

L. Nedelcu, C. Busuioc, M. Banciu, R. Ramer

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引用次数: 1

摘要

采用固相反应法制备了Ba(X1/3Ta2/3)O3 (X=Zn, Mg)钙钛矿。采用x射线衍射和扫描电镜对Ba(X1/3Ta2/3)O3样品进行了结构和形态表征。Ba(Zn1/3Ta2/3)O3和Ba(Mg1/3Ta2/3)O3的介电常数分别为28和24。发现阳离子的顺序对介电损耗有很大的影响。Q × f产品的实现值从100到200太赫兹，使Ba(X1/3Ta2/3)O3介电谐振器在微波和毫米波应用中具有吸引力。

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Ba(X1/3Ta2/3)O3 complex perovskites for microwave and millimeter-wave applications

Ba(X_1/3Ta_2/3)O₃ (X=Zn, Mg) perovskites were prepared by using the solid state reaction method. X-ray diffraction and scanning electron microscopy were employed for structural and morphological characterization of Ba(X_1/3Ta_2/3)O₃ samples. The dielectric constant of the resonators was 28 for Ba(Zn_1/3Ta_2/3)O₃ and 24 for Ba(Mg_1/3Ta_2/3)O₃. A strong influence of the cation ordering on the dielectric loss has been found. The achieved values of Q × f product, ranging from 100 to 200 THz, make Ba(X_1/3Ta_2/3)O₃ dielectric resonators attractive for microwave and millimetre-wave applications.

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CAS 2012 (International Semiconductor Conference)

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