Improved High-Q Dielectric Resonator with Complex Perovskite Structure |
| |
| Authors: | Hiroshi Tamura Takehiro Konoike Yukio Sakabe Kikuo Wakino |
| |
| Affiliation: | Murata Manufacturing Co., Ltd., 2-26-10 Tenjin, Nagaoka kyo-shi, Kyoto 617, Japan |
| |
| Abstract: | Microwave characteristics of the system Ba(Zn1/3Ta2/3)O3-BaZrO3 were investigated. Ba(Zn,Ta)O3 has a perovskite pseudocell and hexagonal superstructure; the superstructure was not formed after addition of BaZrO3. Both sintering and crystallization of Ba(Zn,Ta)O3-BaZrO3 were accelerated compared to those of Ba(Zn,Ta)O3 alone, and the microwave Q value was also improved. The material optimized for the dielectric resonator, Ba(Ni,Ta)O3-Ba(Zr,Zn,Ta)O3, has a dielectric constant of 30, Q value of 10000 at 10 GHz, and temperature coeficient of resonant frequency of 0 ppm/°C. |
| |
| Keywords: | |
|
|
