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公开(公告)号:KR1019970001057B1
公开(公告)日:1997-01-25
申请号:KR1019960050578
申请日:1996-10-31
Applicant: 한국과학기술연구원
IPC: C04B35/465
Abstract: Dielectric ceramic composition for high-frequency wave is described which has high quality coefficient(Q value) and dielectric constant, and good temperature coefficient of resonance frequency. The dielectric ceramic composition may be represented as following formula: (1-z)(Sr1-yCay)TiO3-yLa(Zn1-x/2Mgx/2Ti1/2)O3, where, x is from0 to 1.0, y is from 0.01 to 0.99 and z is from 0.4 to 0.7. The dielectric composition according to the invention has dielectricconstant of 33.1 to 60.2, Qxfo(GHz) of 25,060 to 66,140, and the temperature coefficient of resonance frequency(TCF) ranging from -53.82to +52.32 ppm/deg. C, which TCF being able to be controlled at a rangeof +-10ppm/deg. C depending on amount of addition of impurities, so thatthe ceramic composition may effectively be used in telecommunication system.
Abstract translation: 描述了具有高质量系数(Q值)和介电常数以及良好的共振频率温度系数的用于高频波的介电陶瓷组合物。 介电陶瓷组合物可以由下式表示:(1-z)(Sr1-yCay)TiO3-yLa(Zn1-x / 2Mgx / 2Ti1 / 2)O3,其中x为0至1.0,y为0.01至 0.99,z为0.4〜0.7。 根据本发明的电介质组合物的介电常数为33.1〜60.2,Qxfo(GHz)为25,060〜66,140,共振频率(TCF)的温度系数为-53.82〜+ 52.32ppm / deg。 C,哪个TCF能够控制在+ -10ppm / deg的范围。 C取决于杂质的添加量,使得陶瓷组合物可以有效地用于电信系统中。
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公开(公告)号:KR1019960000821A
公开(公告)日:1996-01-25
申请号:KR1019940013994
申请日:1994-06-21
Applicant: 한국과학기술연구원
IPC: C04B35/46
Abstract: 본 발명은 조성식 (1-z)(Sr
1-y Cay)ToO
3-z La(Zn
1-x/2 Mg
x/2 Ti
1/2 )O
3 로 표시되고, x의 범위가 0≤x≤1.0이고, y의 범위가 0≤y≤0.99이며, z의 범위가 0.4≤z≤0.7인 고주파용 유전체 조성물을 제공한다. 이 조성물은 유전율이 33.1 내지 60.2이고, Q
x f
0 (GHz)가 25,060 내지 66,140이며, 공진 주파수의 온도 계수(TCF)의 범위가 -39.35 내지 83.60ppm/℃로서, 고주파용 유전체 세라믹스가 요구되는 통신 시스템에 적합하게 사용될 수 있다.-
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公开(公告)号:KR1019970001259B1
公开(公告)日:1997-02-04
申请号:KR1019960050579
申请日:1996-10-31
Applicant: 한국과학기술연구원
IPC: C04B35/465
Abstract: Dielectric ceramic composition for high-frequency wave is described which has high quality coefficient(Q value) and dielectric constant, and good temperature coefficient of resonance frequency. The dielectric ceramic composition may be represented as following formula: (1-z)(Sr1-yCay)TiO3-zLa(Zn1-x/2Mgx/2Ti1/2)O3, where, the range of x is from 0 to 1.0, the range of y is from 0.01 to 0.99 and the range of z is from 0.4 to 0.7. The dielectric composition according to the invention has dielectric constant of 33.1 to 60.2, Qxfo(GHz) of 25,060 to 66,140, and the temperature coefficient of resonance frequency(TCF) ranging from -39.35 to 83.60 ppm/deg. C, which TCF being able to be controlled at a range of +-10ppm/deg. C depending on amount of addition of impurities, so that the ceramic composition may effectively be used in telecommunication system.
Abstract translation: 描述了具有高质量系数(Q值)和介电常数以及良好的共振频率温度系数的用于高频波的介电陶瓷组合物。 电介质陶瓷组合物可以由下式表示:(1-z)(Sr1-yCay)TiO3-zLa(Zn1-x / 2Mgx / 2Ti1 / 2)O3,其中x的范围为0至1.0, y的范围为0.01〜0.99,z的范围为0.4〜0.7。 根据本发明的电介质组合物的介电常数为33.1〜60.2,Qxfo(GHz)为25,060〜66,140,共振频率(TCF)的温度系数为-39.35〜83.60 ppm / deg。 C,哪个TCF能够控制在+ -10ppm / deg的范围内。 C取决于杂质的添加量,使得陶瓷组合物可以有效地用于电信系统中。
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公开(公告)号:KR1019970001062B1
公开(公告)日:1997-01-25
申请号:KR1019940013994
申请日:1994-06-21
Applicant: 한국과학기술연구원
IPC: C04B35/46
Abstract: High frequency dielectric material comprises a basic compsn. (1) (1-y) SrTiO3- y(La(1-x)Ndx)(Mg1/2 Ti1/2)O3 (where x=0-0.1, y=0.01-0.99 and z=0.4-0.7)which reduces the dielectric loss.
Abstract translation: 高频电介质材料包括基本组成。 (1)(1-y)SrTiO3-y(La(1-x)Ndx)(Mg1 / 2Ti1 / 2)O3(其中x = 0-0.1,y = 0.01-0.99和z = 0.4-0.7) 降低介电损耗。
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