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CN106927804B 一种微波介质陶瓷温频特性调控剂及其LTCC材料 有权

一种微波介质陶瓷温频特性调控剂及其LTCC材料
Abstract:
本发明公开了一种微波介质陶瓷、微波介质陶瓷温频特性调节剂及其LTCC材料，微波介质陶瓷包括主晶相，主晶相的化学式是BaSixO2x+1(1.56≤x≤1.85)。该陶瓷具有低介电常数(εr＝7.1～7.9)、较高的品质因数(Q×f＝10973～20350GHz)、较宽的烧结温度(750℃～1250℃)，同时主晶相在还原性气氛N2‑1vol％H2中烧结后仍具有优异的微波介电性能，是一种具有良好抗还原性的微波介质陶瓷材料，该微波介质陶瓷可以作为一种微波介质陶瓷温频特性调控剂，其在还原性气氛中能保持稳定的相结构和良好的微波介电性能(抗还原性)，较传统调节剂有明显的优势，是一种能应用于BME‑MLCC的新型温频特性调节剂。
Abstract(English):

A microwave dielectric ceramic, including a main crystal phase having a chemical formula of BaSixO2x+1, where 1.56≤x≤1.85. A regulator for regulating frequency-temperature characteristics of microwave dielectric ceramics is also provided. The dielectric constant of the microwave dielectric ceramic is smaller than 8, the temperature coefficient of resonate frequency of the microwave dielectric ceramic is positive, and the microwave dielectric ceramic is anti-reductive. A low temperature co-fired ceramic material includes a main crystal phase, the regulator, and a sintering additive. The main crystal phase of the low temperature co-fired ceramic material includes barium, aluminum, silicon, and oxygen.

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