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Dielectric ceramic, dielectric ceramic material, filter, radio frequency unit and communication equipment
The invention provides a dielectric ceramic, which has a tungsten bronze structure crystal phase and comprises Ba, Nd, Eu, Ti, Al and O elements, the Eu element replaces Nd in Ba (6-3x) Nd (8 + 2x) Ti18O54 ceramic, the Al element replaces part of Ti in the Ba (6-3x) Nd (8 + 2x) Ti18O54 ceramic, and the Eu replaces less than or equal to 10 mol% of Nd. The invention also provides the microwave dielectric ceramic material, a dielectric filter comprising the microwave dielectric ceramic material, and a radio frequency unit and communication equipment comprising the dielectric filter. A part of Nd in Ba6-3xNd8 + 2xTi18O54 ceramic is replaced by an Eu element, and a part of Ti is replaced by an Al element, so that the excellent comprehensive microwave dielectric property of the dielectric ceramic material is realized, and the dielectric ceramic material has a high dielectric constant, a high Qf value and a zero-approaching resonant frequency temperature coefficient tau f.
本申请提供一种介电陶瓷,具有钨青铜结构晶相,包括Ba、Nd、Eu、Ti、Al和O元素,其为Eu元素取代Ba6‑3xNd8+2xTi18O54陶瓷中的Nd,且Al元素取代Ba6‑3xNd8+2xTi18O54陶瓷中的部分的Ti,其中Eu取代小于等于10%摩尔的Nd。本申请还提供微波介质陶瓷材料、包括该微波介质陶瓷材料的介质滤波器和包括该介质滤波器的射频单元和通信设备。通过Eu元素取代Ba6‑3xNd8+2xTi18O54陶瓷中的部分的Nd,且Al元素取代部分的Ti,从而实现介电陶瓷材料优异的综合微波介电性能,具有高的介电常数、高的Qf值、及趋零谐振频率温度系数τf。
Dielectric ceramic, dielectric ceramic material, filter, radio frequency unit and communication equipment
The invention provides a dielectric ceramic, which has a tungsten bronze structure crystal phase and comprises Ba, Nd, Eu, Ti, Al and O elements, the Eu element replaces Nd in Ba (6-3x) Nd (8 + 2x) Ti18O54 ceramic, the Al element replaces part of Ti in the Ba (6-3x) Nd (8 + 2x) Ti18O54 ceramic, and the Eu replaces less than or equal to 10 mol% of Nd. The invention also provides the microwave dielectric ceramic material, a dielectric filter comprising the microwave dielectric ceramic material, and a radio frequency unit and communication equipment comprising the dielectric filter. A part of Nd in Ba6-3xNd8 + 2xTi18O54 ceramic is replaced by an Eu element, and a part of Ti is replaced by an Al element, so that the excellent comprehensive microwave dielectric property of the dielectric ceramic material is realized, and the dielectric ceramic material has a high dielectric constant, a high Qf value and a zero-approaching resonant frequency temperature coefficient tau f.
本申请提供一种介电陶瓷,具有钨青铜结构晶相,包括Ba、Nd、Eu、Ti、Al和O元素,其为Eu元素取代Ba6‑3xNd8+2xTi18O54陶瓷中的Nd,且Al元素取代Ba6‑3xNd8+2xTi18O54陶瓷中的部分的Ti,其中Eu取代小于等于10%摩尔的Nd。本申请还提供微波介质陶瓷材料、包括该微波介质陶瓷材料的介质滤波器和包括该介质滤波器的射频单元和通信设备。通过Eu元素取代Ba6‑3xNd8+2xTi18O54陶瓷中的部分的Nd,且Al元素取代部分的Ti,从而实现介电陶瓷材料优异的综合微波介电性能,具有高的介电常数、高的Qf值、及趋零谐振频率温度系数τf。
Dielectric ceramic, dielectric ceramic material, filter, radio frequency unit and communication equipment
介电陶瓷、介质陶瓷材料、滤波器、射频单元和通信设备
COLO DIAZZINI TARAS (author) / LU BIAO (author)
2023-09-05
Patent
Electronic Resource
Chinese
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