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Temperature-stable low-loss medium-dielectric microwave dielectric ceramic and preparation method thereof
The invention provides temperature-stable low-loss medium-dielectric microwave dielectric ceramic and a preparation method thereof, and solves the problems of low quality factor and large temperature coefficient of resonance frequency of medium-high dielectric microwave dielectric ceramic. The temperature-stable low-loss medium-dielectric microwave dielectric ceramic is synthesized by taking Ca0.8Sr0.2TiO3 ceramic as a matrix and SmAlO3 as a doping agent; the temperature-stable low-loss medium-dielectric microwave dielectric ceramic presents a single orthorhombic phase, the chemical formula of the temperature-stable low-loss medium-dielectric microwave dielectric ceramic is Ca0.52Sr0.13Sm0.35Ti0.65Al0.35O3, the dielectric constant of the temperature-stable low-loss medium-dielectric microwave dielectric ceramic is 35.7-42.0, the quality factor of the temperature-stable low-loss medium microwave dielectric ceramic is 22770-39120 GHz, and the temperature coefficient of resonance frequency is -11.5 ppm/DEG C to 10 ppm/DEG C.
本发明提供了一种温度稳定型低损耗中介微波介质陶瓷及其制备方法，解决中高介微波介质陶瓷存在品质因数低和谐振频率温度系数大的问题。该温度稳定型低损耗中介微波介质陶瓷，以Ca0.8Sr0.2TiO3陶瓷为基体，以SmAlO3为掺杂剂合成制得，其呈现单一的正交相，化学式为Ca0.52Sr0.13Sm0.35Ti0.65Al0.35O3，其介电常数为35.7～42.0，品质因数为22770～39120GHz，谐振频率温度系数为‑11.5ppm/℃～10ppm/℃。
Temperature-stable low-loss medium-dielectric microwave dielectric ceramic and preparation method thereof
The invention provides temperature-stable low-loss medium-dielectric microwave dielectric ceramic and a preparation method thereof, and solves the problems of low quality factor and large temperature coefficient of resonance frequency of medium-high dielectric microwave dielectric ceramic. The temperature-stable low-loss medium-dielectric microwave dielectric ceramic is synthesized by taking Ca0.8Sr0.2TiO3 ceramic as a matrix and SmAlO3 as a doping agent; the temperature-stable low-loss medium-dielectric microwave dielectric ceramic presents a single orthorhombic phase, the chemical formula of the temperature-stable low-loss medium-dielectric microwave dielectric ceramic is Ca0.52Sr0.13Sm0.35Ti0.65Al0.35O3, the dielectric constant of the temperature-stable low-loss medium-dielectric microwave dielectric ceramic is 35.7-42.0, the quality factor of the temperature-stable low-loss medium microwave dielectric ceramic is 22770-39120 GHz, and the temperature coefficient of resonance frequency is -11.5 ppm/DEG C to 10 ppm/DEG C.
本发明提供了一种温度稳定型低损耗中介微波介质陶瓷及其制备方法，解决中高介微波介质陶瓷存在品质因数低和谐振频率温度系数大的问题。该温度稳定型低损耗中介微波介质陶瓷，以Ca0.8Sr0.2TiO3陶瓷为基体，以SmAlO3为掺杂剂合成制得，其呈现单一的正交相，化学式为Ca0.52Sr0.13Sm0.35Ti0.65Al0.35O3，其介电常数为35.7～42.0，品质因数为22770～39120GHz，谐振频率温度系数为‑11.5ppm/℃～10ppm/℃。
Temperature-stable low-loss medium-dielectric microwave dielectric ceramic and preparation method thereof
一种温度稳定型低损耗中介微波介质陶瓷及其制备方法
FAN HUIQING (Autor:in) / ZHANG AO (Autor:in) / WANG WEIJIA (Autor:in) / HOU DINGWEI (Autor:in) / YANG FAN (Autor:in) / CHEN YANQIN (Autor:in)
24.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2022
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