Tunability and microwave dielectric properties of BaO–SrO–Nd2O3–TiO2 ceramics |
| |
| Affiliation: | 1. GIRICOND Research Institute, 10 Kurchatov Street, St. Petersburg 194223, Russia;2. A.F. Ioffe Physicotechnical Institute Russian Academy of Sciences, 26 Politechnicheskaya Street, St. Petersburg 194021, Russia;3. Ceramics Co. Ltd., 10 Kurchatova Street, St. Petersburg 194223, Russia;4. Siberian State Research Institute of Metrology, 4 Dimitrova Street, Novosibirsk 630004, Russia;5. St. Petersburg State Mining Institute, 2, 21st Line, St. Petersburg 199106, Russia;1. National Engineering Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Jianshe Road, Chengdu 610054, PR China;2. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Jianshe Road, Chengdu 610054, PR China;1. CAS Key Lab. of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;2. School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China;3. University of Chinese Academy of Sciences, Beijing 100049, China |
| |
| Abstract: | Ferroelectrics such as barium–strontium titanates (BSTO) and Mg-doped BSTO are well known as promising candidates for the application in microwave tunable devices including phase shifters, filters, and others operating at microwave frequencies. In this study new bulk ceramics based on BaTiO3 (BTO)–SrTiO3 (STO) with addition of BaNd2Ti4O12 (BNT) solid solution was investigated. The phase correlations, size, and nature of boundaries between phases were studied using scanning electron microscopy (SEM). The effect of compositional change on the unit cell parameters of the perovskite phase, microwave dielectric properties, and tunability under DC field had been studied. The materials with dielectric constant ∼320–700, Qf = 1950–3000 GHz at 3.5 GHz and tunability ∼8.0–31.7% at E = 1 V/μm were achieved. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
