Investigation of barium strontium titanate thick films for tunable phase shifters

被引：116

作者：

Zimmermann, F

Voigts, M

Weil, C

Jakoby, R

Wang, P

Menesklou, W

Ivers-Tiffée, E

机构：

[1] Univ Karlsruhe, TH, IWE, D-76128 Karlsruhe, Germany

[2] Univ Darmstadt, TU, Inst Hochfrequenztech, D-64283 Darmstadt, Germany

[3] DaimlerChrysler AG, Forsch & Technol, Ulm, Germany

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2001年 / 21卷 / 10-11期

关键词：

BaTiO3 and titanates; dielectric properties; grain size; phase shifter; porosity;

D O I：

10.1016/S0955-2219(01)00164-9

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 influence of the microstructure of Ba0.6Sr0.4TiO3 (BST) bulk ceramics and thick films on the dielectric properties have been studied. Thick films have been prepared by screen printing technique on Al2O3 substrates. The powder has been prepared by using the common mixed oxide technique. In comparison to dense bulk ceramics, the permittivity of thick films is approximately 10 times less. The effect of temperature on the permittivity and the tunability (change of the dielectric constant with applied voltage) has also been investigated at low frequency (1 kHz). At microwave frequencies, BST thick films have been characterized by measuring coplanar waveguides (CPW) at room temperature and utilizing an enhanced quasi-static CPW model for multilayer dielectric substrates. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：2019 / 2023

页数：5

共 10 条

[1]

ARLT G, 1985, J APPL PHYS, V58, P371

[2] Ferroelectric phase shifters and their performance in microwave phased array antennas [J].