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Medium-dielectric-constant double-perovskite microwave dielectric ceramic material and preparation method thereof
The invention discloses a novel microwave dielectric ceramic with a double-perovskite structure and a preparation method thereof, and belongs to the technical field of microwave dielectric ceramic preparation,wherein the dielectric constant epsilon is 20-27, the product (Q*f) of a quality factor and resonant frequency is 17000-29000 GHz, and the temperature coefficient (tau f) of the resonant frequency is -77 to -79 ppm/DEG C, and the chemical composition is La3Mg2MO9 (M is Nb, Sb or Ta). The microwave dielectric ceramic with the double perovskite structure disclosed by the invention is simple in chemical composition and preparation process, and can be applied to manufacturing of microwave devices such as dielectric resonators, microwave integrated circuit substrates and the like.
本发明公开一种介电常数ε在20～27之间,品质因子与谐振频率乘积(Q×f)在17,000～29,000GHz，谐振频率温度系数(τf)在‑77～‑79ppm/℃的新型双钙钛矿结构微波介质陶瓷及其制备方法，属于微波介质陶瓷制备技术领域，其化学组成为La3Mg2MO9(M＝Nb,Sb,Ta)。本发明公开的双钙钛矿结构微波介质陶瓷化学组成及制备工艺简单，可应用于介质谐振器、微波集成电路基片等微波器件的制造。
Medium-dielectric-constant double-perovskite microwave dielectric ceramic material and preparation method thereof
The invention discloses a novel microwave dielectric ceramic with a double-perovskite structure and a preparation method thereof, and belongs to the technical field of microwave dielectric ceramic preparation,wherein the dielectric constant epsilon is 20-27, the product (Q*f) of a quality factor and resonant frequency is 17000-29000 GHz, and the temperature coefficient (tau f) of the resonant frequency is -77 to -79 ppm/DEG C, and the chemical composition is La3Mg2MO9 (M is Nb, Sb or Ta). The microwave dielectric ceramic with the double perovskite structure disclosed by the invention is simple in chemical composition and preparation process, and can be applied to manufacturing of microwave devices such as dielectric resonators, microwave integrated circuit substrates and the like.
本发明公开一种介电常数ε在20～27之间,品质因子与谐振频率乘积(Q×f)在17,000～29,000GHz，谐振频率温度系数(τf)在‑77～‑79ppm/℃的新型双钙钛矿结构微波介质陶瓷及其制备方法，属于微波介质陶瓷制备技术领域，其化学组成为La3Mg2MO9(M＝Nb,Sb,Ta)。本发明公开的双钙钛矿结构微波介质陶瓷化学组成及制备工艺简单，可应用于介质谐振器、微波集成电路基片等微波器件的制造。
Medium-dielectric-constant double-perovskite microwave dielectric ceramic material and preparation method thereof
中介电常数双钙钛矿微波介质陶瓷材料及其制备方法
YANG LI (Autor:in) / YANG XIAOYAN (Autor:in) / KUANG XIAOJUN (Autor:in)
17.12.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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