R&D of next generation millimeter-wave dielectrics with low dielectric constant and high Q
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基本信息
- 批准号:22560673
- 负责人:
- 金额:$ 2.91万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2010
- 资助国家:日本
- 起止时间:2010 至 2012
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Millimeter-wave dielectrics of glass ceramics are formed from the glass with cordierite composition. Glass ceramics composed by indialite which is a polymorph of cordierite were formed. The glass ceramics with superior properties such as high Qf > 200,000 GHz, low dielectric constant (ε_r) of 4.7, temperature coefficient of resonant frequency (TCf) = -27 ppm/℃. But, the glass ceramics shown an anisotropic feature crystallized from glass surface. Cordierite is well known as low thermal expansion material with minus expansion to c-axis and plus expansion to a-axis. A serious problem of clacks appears at the point met the crystals grew from different glass surface. As large cracks are reduced by slow cooling after sintering, measurement of millimeter-wave properties was possible. But, small clacks affected to the Qf values so as to be random variation. Moreover, rutile powder was added in the glass composition for crystal growth agent so as to crystalize in the volume of grass. Consequently, millimeter-wave dielectrics without the cracks and with good properties were fabricated. The properties are as follows: Qf= 120,000GHz, TCf= 0 ppm/OC, ε_r = 7.
微晶玻璃的毫米波介电材料是由含有堇青石成分的玻璃形成的。形成了由堇青石的多晶型英辉石组成的微晶玻璃。该微晶玻璃具有高QF>;200,000 GHz,低介电常数(ε_r)=4.7,谐振频率温度系数(Tcf)=-27ppm/℃等优异性能。但是,微晶玻璃呈现出由玻璃表面晶化而来的各向异性特征。堇青石是众所周知的低热膨胀材料,向c轴负膨胀,向a轴正膨胀。在不同玻璃表面结晶生长的结合点上出现了严重的粘结问题。由于烧结后通过缓慢冷却减少了大裂纹,因此毫米波性能的测量成为可能。但是,小波纹对QF值的影响是随机变化的。此外,在玻璃成分中加入金红石粉作为晶体生长剂,使其结晶成草的体积。从而制得了性能良好、无裂纹的毫米波介质材料。其性能如下:Qf=120,000 GHz,Tcf=0ppm/oC,ε_r=7。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Fabrication of indialite glass ceramics with high Q and low dielectric constant for millimeterwave dielectrics
用于毫米波电介质的高 Q 值和低介电常数的 Indialite 玻璃陶瓷的制备
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:H. Ohsato;J-S. Kim;A-Y Kim;C-I. Cheon;K-W. Chae and I. Kaomiya
- 通讯作者:K-W. Chae and I. Kaomiya
Fabrication of indialite glass ceramics with low dielectric constant for millimeterwave dielectrics
毫米波电介质用低介电常数Indialite玻璃陶瓷的制备
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:H. Ohsato;A-Y. Kim;J-S. Kim;C-I. Cheon;K-W. Chae;& I. Kagomiya
- 通讯作者:& I. Kagomiya
低誘電率・高Qインディエライト/コーディエライト結晶化ガラス誘電体
低介电常数/高Q值堇青石/堇青石结晶玻璃电介质
- DOI:
- 发表时间:2011
- 期刊:
- 影响因子:0
- 作者:大里齊;J-S. KIM;Y-J. LEE;C-I. Cheon and I. Kagomiya
- 通讯作者:C-I. Cheon and I. Kagomiya
Microwave Dielectric Properties and Crystal Structures on Ni-doped Cordierite and Indialite System
掺镍堇青石和印度石体系的微波介电性能和晶体结构
- DOI:
- 发表时间:2010
- 期刊:
- 影响因子:0
- 作者:H. Ohsato;A-Y. Kim;C-I. Cheon;K-W. Chae;J-S. Kim and I. Kagomiya
- 通讯作者:J-S. Kim and I. Kagomiya
Materials Science and Technology, Chapter 2(Edited by S.D.Hutagalung)
材料科学与技术,第二章(S.D.Hutagalung 编辑)
- DOI:
- 发表时间:2012
- 期刊:
- 影响因子:0
- 作者:H.Ohsato;A-Y.Kim;C-I.Cheon;K-W.Chae;J-S.Kim;I.Kagomiya;H. Ohsato(edited by Sabar D. Hutagalung);H.Ohsato
- 通讯作者:H.Ohsato
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OHSATO Hitoshi其他文献
OHSATO Hitoshi的其他文献
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{{ truncateString('OHSATO Hitoshi', 18)}}的其他基金
Research & Development of low temperature co-fired glass ceramics with high Q and low dielectrics for millimeter-wave communication
研究
- 批准号:
16K06735 - 财政年份:2016
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
R&D of LTCC materials with high Q and low dielectric constant for millimeter-wave communications
右
- 批准号:
25420721 - 财政年份:2013
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Research of microwave/millimeterwave dielectrics on the silicate system
硅酸盐体系微波/毫米波电介质研究
- 批准号:
17360325 - 财政年份:2005
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Material Design of New Piezoelectric Crystal Langasite based on the Crystal Structure
基于晶体结构的新型压电晶体硅酸镁石材料设计
- 批准号:
13650738 - 财政年份:2001
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Materials design and development of microwave dielectrics based on the crystal structure
基于晶体结构的微波介质材料设计与开发
- 批准号:
10559013 - 财政年份:1998
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Distribution of Cation in One-Dimensional Tunnel Structure of Priderite
Priderite一维隧道结构中阳离子的分布
- 批准号:
03804067 - 财政年份:1991
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Synthesis and Characterization of Hollandite Type Compounds
镁锰矿型化合物的合成与表征
- 批准号:
60540521 - 财政年份:1985
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)