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公开(公告)号：KR100612800B1
公开(公告)日：2006-08-18
申请号：KR1020040042532
申请日：2004-06-10
Applicant: 한국과학기술연구원
IPC: H01L41/08
Abstract: 본 발명은, 압전 특성을 갖는 복수의 압전체와, 상기 압전체 상하의 면 상에 상기 압전체의 가장자리에 닿는 종단부에 반원형상의 일정 공간을 남기도록 각각 구비된 상부전극 및 하부전극과, 상기 상부전극 및 하부전극의 일정 공간에 각각 인접하도록 상기 각각의 압전체 내에 배치되고, 상기 일정 공간을 한정하는 상기 상부전극 및 하부전극의 종단부의 선의 형상에 대응하고 일정 폭을 가지는 밴드 형상으로 이루어진 한 쌍의 금속성 부유전극을 포함하는 압전 적층 액추에이터를 제공한다. 부유전극은, 상기 일정 공간을 한정하는 상기 상부전극 및 하부전극의 종단부의 선과 상기 부유전극의 상기 폭 방향의 중심선이 동일 수직선 상에 위치하도록 상기 압전체 상에 배치된다.
압전, 액추에이터, 전극, 부유, 밴드, 응력-
公开(公告)号：KR1020040092005A
公开(公告)日：2004-11-03
申请号：KR1020030025807
申请日：2003-04-23
Applicant: 한국과학기술연구원
IPC: H02N2/02
CPC classification number: H02N2/02 , H01L41/187
Abstract: PURPOSE: A complex piezoelectric linear ultrasonic motor is provided to obtain driving forces in proportion to shaking beams, and achieve improved response and moving velocity. CONSTITUTION: A complex piezoelectric linear ultrasonic motor comprises a half-wave converter(80) including a plurality of piezoelectric ceramics(20) for generating mechanical vibrations, horns(10) arranged beneath the piezoelectric ceramics so as to expand the size of vibration, and a metal member(30) for compressing the piezoelectric ceramics. The complex piezoelectric linear ultrasonic motor further includes a plurality of protrusions(50) formed at the centers of the horns, respectively, such that the protrusions generate an elliptical mechanical displacement when the high frequency AC field having two different phases is applied to the half wave converter; and a mover(70) which contacts the bottom portions of the protrusions, and moves in a linear manner through the friction force with the protrusions.
Abstract translation: 目的：提供一种复合的压电线性超声波电机，以获得与摇梁成比例的驱动力，并实现改善的响应和移动速度。 构成：复合压电线性超声波电动机包括：半波变换器（80），包括用于产生机械振动的多个压电陶瓷（20），设置在压电陶瓷下方的喇叭（10），以扩大振动的大小;以及 用于压缩压电陶瓷的金属构件（30）。 复数压电线性超声波马达还包括分别形成在喇叭中心处的多个突起（50），使得当具有两个不同相位的高频AC场被施加到半波时，突起产生椭圆机械位移 转换器; 以及与突起的底部接触的移动体（70），并且通过与突起部的摩擦力直线移动。
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公开(公告)号：KR100414765B1
公开(公告)日：2004-01-13
申请号：KR1020010033969
申请日：2001-06-15
Applicant: 한국과학기술연구원
IPC: H01Q1/27
Abstract: A ceramic chip antenna, which has a small size and a broad bandwidth, is provided. The ceramic chip antenna consists of a ceramic body with cuboid shape, a conductor wound helically inside the ceramic body, and signal-feed terminal formed on a surface of the ceramic body. The ceramic chip antenna with a helical conductor patterns formed in a symmetrical dipole shape is provided, which has a high gain value and excellent radiation characteristics. Also, it can be built-in inside a mobile terminal due to its small size. The ceramic chip antenna according to the present invention can have a broad bandwidth that satisfies the variable frequency of the present mobile communication system.
Abstract translation: 提供具有小尺寸和宽带宽的陶瓷芯片天线。 陶瓷芯片天线由长方体形陶瓷体，陶瓷体内部螺旋缠绕的导体和形成在陶瓷体表面上的信号馈送端子组成。 本发明提供一种具有螺旋导体图案形成为对称偶极子形状的陶瓷芯片天线，其具有高增益值和优异的辐射特性。 而且，由于其体积小，它可以内置在移动终端内部。 根据本发明的陶瓷芯片天线可以具有满足当前移动通信系统的可变频率的宽带宽。
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公开(公告)号：KR1020020095775A
公开(公告)日：2002-12-28
申请号：KR1020010033969
申请日：2001-06-15
Applicant: 한국과학기술연구원
IPC: H01Q1/27
Abstract: PURPOSE: A ceramic chip antenna is provided to achieve high gain and improved radiation characteristics, while reducing size of the antenna to allow the antenna to be embedded within the portable terminal. CONSTITUTION: A ceramic chip antenna comprises a main body formed by depositing first, second and third dielectric sheets(100a,100b,100c); first and second horizontal metal patterns(112,114) formed at the upper surface of the main body; third and fourth horizontal metal patterns(116,118) formed at the lower surface of the main body; and first, second, third and fourth vertical metal patterns(122,124,126,128) formed at the side surface of the main body, and which connected first and second horizontal metal patterns and third and fourth horizontal metal patterns. Feeder units(130) are mounted at the side surfaces of second and third dielectric sheets.
Abstract translation: 目的：提供陶瓷芯片天线以实现高增益和改进的辐射特性，同时减小天线的尺寸以允许天线嵌入便携式终端内。 构成：陶瓷芯片天线包括通过沉积第一，第二和第三电介质片（100a，100b，100c）形成的主体; 第一和第二水平金属图案（112,114），形成在主体的上表面; 第三和第四水平金属图案（116,118），形成在主体的下表面; 以及形成在主体的侧表面处的第一，第二，第三和第四垂直金属图案（122,124,126,128），以及连接的第一和第二水平金属图案以及第三和第四水平金属图案。 馈送单元（130）安装在第二和第三电介质片的侧表面。
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公开(公告)号：KR1020020068111A
公开(公告)日：2002-08-27
申请号：KR1020010008360
申请日：2001-02-20
Applicant: 한국과학기술연구원
IPC: C04B35/465 , H01B3/12
CPC classification number: C04B35/465 , C04B2111/00844 , C04B2111/90 , C04B2235/3236 , H01B3/12 , H01G4/1227
Abstract: PURPOSE: Provided is a microwave dielectric ceramic composition of the Ca((Li1/3Nb2/3)1-x Tix)O3-δ system having high dielectric constant, large Q value at high frequency, temperature coefficient of resonant frequency which is close to zero, and low temperature sintering. CONSTITUTION: The dielectric ceramic composition is expressed by a formula of Ca((Li1/3Nb2/3)1-x Tix)O3-δ, wherein x is in the range of x
Abstract translation: 目的：提供介电常数高，高频Q值大，谐振频率温度系数接近于（（Li1 / 3Nb2 / 3）1-x Tix）O3-δ系的微波介质陶瓷组合物 零点和低温烧结。 构成：电介质陶瓷组合物由Ca（（Li1 / 3Nb2 / 3）1-x Tix）O3-δ的式表示，其中x在x <= 0.5摩尔的范围内。 将少于2重量％（基于总组成）的B 2 O 3添加到组合物中以降低烧结温度。 该组合物的介电常数为29.7-35.2，Qxfo为12000-26000，共振频率温度系数（TCF）为-16.8¯0ppm/℃，烧结温度低于1000℃。
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Patent Agency Ranking
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公开(公告)号：KR1020010113275A
公开(公告)日：2001-12-28
申请号：KR1020000033546
申请日：2000-06-19
Applicant: 한국과학기술연구원
IPC: H04B1/48
CPC classification number: H01P1/2136
Abstract: 본 발명은 복수 개의 공진홀 및 접지 전극과 각 공진홀들 간의 캐패시턴스를 보다 용이하게 결정할 수 있는 일체형 유전체 듀플렉서를 제공한다. 본 발명에 따른 일체형 유전체 듀플렉서는 유전체 블럭을 관통하는 복수 개의 공진홀과, 공진홀 간의 결합을 위한 전극 패턴, 송신단의 인터디지털형 캐패시터, 및 수신단의 패드형 캐패시터를 포함한다. 안테나단은 수신단과 송신단 신호의 상호 간섭을 억제하기 위해 높은 임피던스를 갖도록 구성하되 이에 따른 부수적 공진을 갖지 않도록 연결선의 길이를 짧게 한다. 캐패시터들의 전극 간격을 가변시키는 한편, 인터디지털형 캐패시터의 핑거의 수 또는 길이를 가변시킴으로써 나타나는 캐패시턴스 값의 변화 특성을 통해 원하는 캐패시턴스 값을 갖는 캐패시터 구조를 결정할 수 있다. 본 발명은 감쇠극이 존재하는 주파수 전달 특성을 보이며, 캐패시턴스 값을 조정함으로써 감쇠극의 위치를 통과 대역 위쪽 또는 아래쪽에 존재하도록 할 수 있다.
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公开(公告)号：KR1020010047698A
公开(公告)日：2001-06-15
申请号：KR1019990052031
申请日：1999-11-23
Applicant: 한국과학기술연구원
Abstract: PURPOSE: A solid dielectric filter having a damping electrode is provided to achieve a small size and obtain frequency transfer characteristics having damping electrodes in frequency bands higher or lower than a pass band. CONSTITUTION: An outer electrode(414) covers the outer surfaces of a dielectric block(401) except only one opened surface. A plurality of resonant holes(402,403,404) are formed to pass through the dielectric block from the opened surface to a rear surface, and the internal surfaces of the resonant holes are filled with electrodes. I/O electrodes(412,413) are formed by insulating portions of the outer electrode from the other portions, and are extended toward the resonant holes on the opened surface. Electrode patterns(405,406,407) are extended from the electrodes within the respective resonant holes, and are spaced apart from each other by predetermined gaps. Ground electrodes(409,410,411) are formed in positions corresponding to the respective electrode patterns.
Abstract translation: 目的：提供具有阻尼电极的固体介质滤波器以实现小尺寸并获得具有高于或低于通带的频带中的阻尼电极的频率传递特性。 构成：只有一个打开的表面，外部电极（414）覆盖介质块（401）的外表面。 多个谐振孔（402,403,404）形成为从开口表面穿过介质块到后表面，并且谐振孔的内表面填充有电极。 I / O电极（412,413）由外部电极的绝缘部分与其它部分绝缘而形成，并且向开放面上的谐振孔延伸。 电极图案（405,406,407）从相应谐振孔内的电极延伸，并且彼此间隔开预定的间隙。 接地电极（409,410,411）形成在对应于各个电极图案的位置。
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公开(公告)号：KR1020010036365A
公开(公告)日：2001-05-07
申请号：KR1019990043341
申请日：1999-10-08
Applicant: 한국과학기술연구원
IPC: H01B3/10
Abstract: PURPOSE: A dielectric composition for microwave is provided which has high dielectric constant and quality coefficient and shows an excellent temperature coefficient of resonance frequency. CONSTITUTION: The dielectric composition for microwave is represented by the following chemical formula 1: (Pb0.4Ca0.6)((Mg1/3Nb2/3)(1-x)Snx)O3, wherein x is above 1 and less than 0.1. According to the change of Sn content, the composition has a dielectric constant of 45.2-64.7 and Qxf0 of 6970-8150 gigahertz and the temperature coefficient range of the resonance frequency of -3.8-0 parts per million/deg.C.
Abstract translation: 目的：提供一种微波介电组合物，具有很高的介电常数和质量系数，并具有极好的谐振频率温度系数。 构成：微波介电组合物由以下化学式1表示：（Pb0.4Ca0.6）（（Mg1 / 3Nb2 / 3）（1-x）Snx）O3，其中x大于1且小于0.1。 根据Sn含量的变化，组成的介电常数为45.2-64.7，Qxf0为6970-8150千兆赫，共振频率的温度系数范围为-3.8-0百万分/℃。
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公开(公告)号：KR1020010028177A
公开(公告)日：2001-04-06
申请号：KR1019990040271
申请日：1999-09-18
Applicant: 한국과학기술연구원
IPC: C04B35/465 , H01B3/12
CPC classification number: H01G4/1254 , C04B35/465
Abstract: PURPOSE: Provided is a composition of a ceramic dielectric for high frequency which has over epsilon30 of electric permittivity, less dielectric loss, and low sintering temperature, bringing down the cost of production, and whose TCF is adjustable within the effective range. CONSTITUTION: A composition of the formula (1) is manufactured by the following steps. CaCO3, Li2CO3, Nb2O5, and TiO2, as starting materials, are dried for 10 hours at 600 deg.C. The materials are mixed according to various composition rates, and, then, are calcined at 850 deg.C for about 2 hours in the atmosphere. After grinding the materials into powder, 5 % of PVA solution is added to the powder to make a cylindric sample. The sample is heated at 600 deg.C for about 1 hour to eliminate organic binder. And the sample is sintered at between 1000 and 1300 deg.C for 1-5 hours. In the formula (1), X is 0≤x≤0.5.
Abstract translation: 目的：提供一种高频陶瓷电介质的组成，其电容率超过ε30，介电损耗小，烧结温度低，降低了生产成本，其TCF可在有效范围内调节。 构成：式（1）的组合物通过以下步骤制造。 作为原料的CaCO 3，Li 2 CO 3，Nb 2 O 5和TiO 2在600℃下干燥10小时。 根据各种组成比混合材料，然后在大气中在850℃下煅烧约2小时。 将材料研磨成粉末后，将5％的PVA溶液加入粉末中制成圆柱形样品。 将样品在600℃加热约1小时以除去有机粘合剂。 样品在1000和1300℃之间烧结1-5小时。 式（1）中，X为0≤x≤0.5。
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