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1)  Microwave dielectric material
微波介质材料
1.
Microwave dielectric materials of BaTi 4O 9 fiber were prepared by hydrothermal synthesis method.
通过水热法首次制备了微波介质材料——BaTi4O9的纤维体。
2.
It is compared that the development level of the microwave dielectric materials in China and other foreign countries, which is based on the introduction of the developing history and the present situation of the microwave dielectric materials in China and other foreign countries.
介绍国内外微波介质材料的发展历史以及现状,比较国内外微波介质材料的发展水平。
3.
Presented are the histores, recent situation and development of microwave dielectric materials and its applications.
详细论述了微波介质材料与器件国内外现状和技术发展趋势, 分析了应用前景和国内市场需求,对我国“十一·五”发展方向和重点研究课题提出了建议。
2)  microwave dielectric materials
微波介质材料
1.
Bismuth-based microwave dielectric materials have at-tracted wide attention because of their relatively low sintering temperature and excellent dielectric properties.
据此,对不同介电常数Bi基微波介质材料体系的研究进展及应用作了综合介绍,并分析了低熔点氧化物掺杂、离子取代对不同体系微波介质材料结构、介电性能的影响。
2.
The recent developments on LNT microwave dielectric materials are reviewed in this paper.
本文综述了LNT微波介质材料的研究进展,概括介绍了M相LNT材料、Li2TiO3ss相LNT材料及LNT复合材料的结构、介电性能及低温烧结工艺,并对该材料的未来发展作了一些展望。
3)  dielectric materials for microwave resonator
微波谐振器介质材料
4)  medium material
介质材料
1.
In this paper,the method about the measuring of radio frequency and microwave s complex permittivity and complex magnetic permeability for medium material was described.
利用同轴探头方法测量介质材料的射频复介电常数和复磁导率。
2.
Because of that knowing the dielectric materials’microwave characteristics is the most important factor in applications, it is very significant to measure the electromagnetic parameters of medium materials.
微波介质材料已经广泛的应用于信息、通信领域,而在这些应用中都必须准确的知道介质材料的微波特性,因此对介质材料电磁参数进行测量具有重要的意义。
5)  dielectric material
介质材料
1.
Ceramic dielectric material and structure were discussed.
主要讨论了陶瓷介质材料和结构,并指出了中高压陶瓷电容器制造工艺需要注意的问题。
2.
If the dielectric material s FTC is properly selected and the trimming outfit is well designed,FTC of dielectric loaded cavity filter is able to meet the requirements of the next generation mobile communication systems,such as IFTS, MMDS and the others which have the relative narrow pa.
通过采用移动通信基站双工器频率温度系数(FTC)的测量方法和得到的实验数据,来设计介质加载谐振腔滤波器,包括介质材料的选择和微调机构的设计。
6)  dielectrics
介质材料
补充资料:微波介质陶瓷(microwave medium ceramics)
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性质:又称微波介质陶瓷(microwave medium ceramics)。用于微波领域的陶瓷材料的总称。按用途可分为两大类:(1)低损耗和超低损耗微波陶瓷,如高铝氧陶瓷、金红石瓷、多钛酸钡瓷、锡锆钛陶瓷、钽酸盐系陶瓷,含稀土氧化物钛酸盐多元系陶瓷等。具有足够的机械强度、适宜的膨胀系数和介电常数。很高的电学品质因素。低的频率温度系数。主要用于制作微波介质谐振器、微波集成电路基片,微波输出窗等。(2)微波衰减瓷,如金属陶瓷、渗碳多孔陶瓷、碳化硅衰减瓷、二氧化钛衰减瓷和铁氧体衰减瓷等。这类材料是绝缘的陶瓷材料与导电材料或者电阻材料所组成的复合材料,是一种半导性物质。主要用于切断、去耦、抑制带边振荡和高于或寄生模式的振荡以及消除其非设计模式等作用,在电子对抗和微波测量系统中作为衰减器及微波吸收材料等。   

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