公开(公告)号：US06147021A

公开(公告)日：2000-11-14

申请号：US186899

申请日：1998-11-06

申请人： Jin Woo Hahn ,  Duk Jun Kim ,  Gee Pyeong Han ,  Yark Yeon Kim ,  Sang Seok Lee ,  Tae Goo Choy

发明人： Jin Woo Hahn ,  Duk Jun Kim ,  Gee Pyeong Han ,  Yark Yeon Kim ,  Sang Seok Lee ,  Tae Goo Choy

IPC分类号： C04B35/46 ,  C04B35/465

CPC分类号： C04B35/465

摘要： A dielectric ceramic composition for a microwave device including MgTiO.sub.3 and CaTiO.sub.3 as a main component and a Li.sub.2 CO.sub.3 as a sub-component is provided. The composition being expressed as follows: (94MgTiO.sub.3 -6CaTiO.sub.3)+xLi.sub.2 CO.sub.3 (mol %), where 0.2.ltoreq.x.ltoreq.0.8 (mol %). Therefore, it is capable of increasing a quality factor and decreasing a sintering temperature by adding a new component and effectively reproducing the above-described dielectric characteristic.

摘要翻译： 提供了一种用于包括MgTiO 3和CaTiO 3作为主要成分的微波装置和作为次成分的Li 2 CO 3的介电陶瓷组合物。 组合物表示如下：（94MgTiO 3·6CaTiO 3）+ xL 2 CO 3（mol％），其中0.2≤x≤0.8（mol％）。 因此，通过添加新的成分，有效地再现上述的电介质特性，能够提高品质因子，降低烧结温度。

公开(公告)号：US6077802A

公开(公告)日：2000-06-20

申请号：US186900

申请日：1998-11-06

申请人： Jin Woo Hahn ,  Duk Jun Kim ,  Gee Pyeong Han ,  Yark Yeon Kim ,  Sang Seok Lee ,  Tae Goo Choy

发明人： Jin Woo Hahn ,  Duk Jun Kim ,  Gee Pyeong Han ,  Yark Yeon Kim ,  Sang Seok Lee ,  Tae Goo Choy

IPC分类号： C04B35/46 ,  C04B35/49 ,  C04B35/457

CPC分类号： C04B35/49

摘要： A microwave dielectric ceramic composition is fabricated by adding one selected from a material containing Ba and a material containing Sr or a mixture of a material containing Ba and a material containing Sr to a composition formed of 25.about.43 wt % of TiO.sub.2, 39-57 wt % of ZrO.sub.2, and 7-28 wt % of SnO.sub.2 as an additive, wherein the additive is added by 0.2.about.8.0 wt % based on the total amount of the composition, and is capable of implementing a high dielectric constant and quality factor by sintering at a temperature of 1250.about.1400.degree. C.

摘要翻译： 通过将含有Ba的材料和含有Ba的材料或含有Ba的材料的混合物和含有Sr的材料添加到由25重量％的TiO 2，39-57形成的组合物中，添加选自微波介电陶瓷组合物 wt％的ZrO 2和7-28wt％的SnO 2作为添加剂，其中添加剂以组合物总量的0.2wt％添加为8.0wt％，并且能够通过以下方式实现高介电常数和质量因子 在1250℃温度下烧结1400℃

公开(公告)号：US06937112B2

公开(公告)日：2005-08-30

申请号：US10185115

申请日：2002-06-27

申请人： Dong Suk Jun ,  Sang Seok Lee ,  Tae Goo Choy ,  Jin Woo Hahn ,  Dong Young Kim ,  Hong Yeol Lee

发明人： Dong Suk Jun ,  Sang Seok Lee ,  Tae Goo Choy ,  Jin Woo Hahn ,  Dong Young Kim ,  Hong Yeol Lee

IPC分类号： H01P1/215 ,  H01P1/23 ,  H01P5/10 ,  H01P5/19 ,  H04N5/52 ,  H01P5/12 ,  H01P5/20 ,  H01Q3/22

CPC分类号： H01P5/10

摘要： A S/N enhancer using the magnetostatic wave signal. The S/N enhancer comprises a balun coupler for dividing an input signal into a first and second signals having the same power, the second signal having the phase difference of 180 degree with respect to the first signal; a saturation magnetostatic wave filter for receiving the first signal output from the balun coupler, converting that into a magnetostatic wave signal, and oppositely converting the magnetostatic wave signal, wherein the power of the magnetostatic wave signal is saturated if the first signal has the power of equal to and more than that of a noise signal; a delay line having the linearity to transmit the second signal output from the balun coupler; and a power synthesizer for synthesizing the respective signals output from the saturation magnetostatic wave filter and the delay line.

摘要翻译： 使用静磁波信号的S / N增强器。 S / N增强器包括：平衡 - 不平衡转换器，用于将输入信号分成具有相同功率的第一和第二信号，第二信号相对于第一信号具有180度的相位差; 饱和静磁波滤波器，用于接收从平衡 - 不平衡变换器耦合器输出的第一信号，将其转换成静磁波信号，并相反地转换静磁波信号，其中如果第一信号具有 等于和大于噪声信号; 具有线性以延迟从所述平衡 - 不平衡转换器耦合器输出的第二信号的延迟线; 以及用于合成从饱和静磁波滤波器和延迟线输出的各个信号的功率合成器。

公开(公告)号：US06850132B2

公开(公告)日：2005-02-01

申请号：US10737554

申请日：2003-12-15

申请人： Dong Suk Jun ,  Sang Seok Lee ,  Tae Goo Choy ,  Jin Woo Hahn ,  Dong Young Kim ,  Hong Yeol Lee

发明人： Dong Suk Jun ,  Sang Seok Lee ,  Tae Goo Choy ,  Jin Woo Hahn ,  Dong Young Kim ,  Hong Yeol Lee

IPC分类号： H01P1/215 ,  H01P1/23 ,  H01P5/10 ,  H01P5/19 ,  H04N5/52 ,  H01P1/20 ,  H03H7/34

CPC分类号： H01P5/10

摘要： A S/N enhancer using the magnetostatic wave signal. The S/N enhancer comprises a balun coupler for dividing an input signal into a first and second signals having the same power, the second signal having the phase difference of 180 degree with respect to the first signal; a saturation magnetostatic wave filter for receiving the first signal output from said balun coupler, converting that into a magnetostatic wave signal, and oppositely converting the magnetostatic wave signal, wherein the power of the magnetostatic wave signal is saturated if the first signal has the power of equal to and more than that of a noise signal; a linear magnetostatic wave filter for receiving the second signal from said balun coupler, converting that into a magnetostatic wave signal, and oppositely converting the magnetostatic wave signal, wherein the received second signal is converted into the magnetostatic wave signal having an energy linear to the power of the input signal; and a power synthesizer for synthesizing the respective signals output from said saturation magnetostatic wave filter and said linear magnetostatic wave filter.

摘要翻译： 使用静磁波信号的S / N增强器。 S / N增强器包括：平衡 - 不平衡转换器，用于将输入信号分成具有相同功率的第一和第二信号，第二信号相对于第一信号具有180度的相位差; 饱和静磁波滤波器，用于接收从所述平衡 - 不平衡变换器耦合器输出的第一信号，将其转换为静磁波信号，并相反地转换静磁波信号，其中如果第一信号的功率为 等于和大于噪声信号; 线性静磁波滤波器，用于接收来自所述平衡 - 不平衡转换器的第二信号，将其转换为静磁波信号，并相反地转换静磁波信号，其中所接收的第二信号被转换成具有与功率成线性关系的能量的静磁波信号 的输入信号; 以及用于合成从所述饱和静磁波滤波器和所述线性静磁波滤波器输出的各个信号的功率合成器。

公开(公告)号：US06673731B2

公开(公告)日：2004-01-06

申请号：US10152221

申请日：2002-05-20

申请人： Jin Woo Hahn ,  Dong Young Kim ,  Sang Seok Lee ,  Tae Goo Choy

发明人： Jin Woo Hahn ,  Dong Young Kim ,  Sang Seok Lee ,  Tae Goo Choy

IPC分类号： C04B35443

CPC分类号： C04B35/443 ,  C04B2235/3203 ,  C04B2235/77

摘要： The present invention relates to a ceramic dielectric material for communication components, which can be used in the microwave and millimeter wave frequency band. More particularly, the present invention relates to a dielectric ceramic composition for the microwave/millimeter wave frequency band having a very high quality factor and a low dielectric constant, and a method of manufacturing the dielectric ceramic using the same. The dielectric ceramic composition consists of spinel (MgAl2O4) as a major component and a small amount of lithium carbonate (Li2CO3) as a sub composition with a specific composition formula. The dielectric ceramic is manufactured from magnesia (MgO), alumina (Al2O3) and lithium carbonate (Li2CO3) as raw materials and through the ceramic processing of calcination, shaping and sintering. The obtained dielectric ceramic has the quality factor (Q×f) of 160,000 and the dielectric constant (&egr;r) of 8.5. Composition formula: MgAl2O4+xLi2CO3(mol %) where, 0

摘要翻译： 本发明涉及可用于微波和毫米波频带的通信部件用陶瓷电介质材料。 更具体地说，本发明涉及具有非常高的品质因数和低介电常数的用于微波/毫米波频带的电介质陶瓷组合物，以及使用该电介质陶瓷的方法。 电介质陶瓷组合物由作为主要成分的尖晶石（MgAl 2 O 4）和作为具有特定组成式的亚组合物的少量碳酸锂（Li 2 CO 3）组成。 电介质陶瓷由氧化镁（MgO），氧化铝（Al2O3）和碳酸锂（Li2CO3）为原料，通过陶瓷加工煅烧，成形和烧结制成。 所获得的介电陶瓷的品质因子（Qxf）为160,000，介电常数（ε）为8.5。组成式：其中，0

公开(公告)号：US6130587A

公开(公告)日：2000-10-10

申请号：US131415

申请日：1998-08-10

申请人： Dong Suk Jun ,  Meyung Soo Kim ,  Bon Hee Koo ,  Chang Hwa Lee ,  Sang Seok Lee ,  Tae Goo Choy

发明人： Dong Suk Jun ,  Meyung Soo Kim ,  Bon Hee Koo ,  Chang Hwa Lee ,  Sang Seok Lee ,  Tae Goo Choy

IPC分类号： H01P1/365 ,  H01P1/387 ,  H01P1/36

CPC分类号： H01P1/387

摘要： An isolator/circulator can keep a size of a 3-way asymmetric propeller resonator and intensity of magnetism, control the preferred frequency, and improve the insertion loss and isolation characteristic due to reducing the ferrite usage region on the maximum, extend the wide band without the external wide band extension, finally to miniaturize, reduce the fabricating cost by means of a simple fabrication. A microstrip/stripline isolator/circulator having a propeller resonator can be used for the device protection and impedance matching of a system and terminal in a transfer communication, personal communication, CT and satellite communication.

摘要翻译： 隔离器/环行器可以保持三维非对称螺旋桨谐振器的尺寸和磁力强度，控制优选频率，并且由于最大限度地减少铁氧体使用区域而提高插入损耗和隔离特性，扩展宽带无 外部宽带扩展，最终小型化，通过简单的制造降低制造成本。 具有螺旋桨谐振器的微带/带状线隔离器/循环器可以用于传输通信，个人通信，CT和卫星通信中的系统和终端的设备保护和阻抗匹配。

公开(公告)号：US6054909A

公开(公告)日：2000-04-25

申请号：US137711

申请日：1998-08-21

申请人： Chang Hwa Lee ,  Myung Soo Kim ,  Bon Hee Koo ,  Dong Suk Jun ,  Sang Seok Lee ,  Tae Goo Choy

发明人： Chang Hwa Lee ,  Myung Soo Kim ,  Bon Hee Koo ,  Dong Suk Jun ,  Sang Seok Lee ,  Tae Goo Choy

IPC分类号： H01P1/205 ,  H01P7/04

CPC分类号： H01P1/2056

摘要： The present invention relates to a microwave filter, having U-type resonators, which passes a desired frequency signal and removes an undesired frequency signal when used in a high frequency antenna circuit for wireless communication systems. In accordance with the trend of reducing communication system terminals, it is required to reduce a high frequency filter. The high frequency filter is required to attenuate signals very sharply at the stop band especially near to a passband transmitting and receiving frequency, so as to improve the efficiency of the frequency. The filter may be reduced in weight by forming U-type resonators instead of straight-type resonators. Excellent attenuation characteristics may be achieved at the stop band lower than the passband, using the difference of the characteristic impedance between the open end portion and the shorted portion of the resonator by forming the coupling control grooves at the outer walls of the dielectric block.

摘要翻译： 本发明涉及一种具有U型谐振器的微波滤波器，当用于无线通信系统的高频天线电路中时，该滤波器通过期望的频率信号并去除非期望的频率信号。 根据减少通信系统终端的趋势，需要降低高频滤波器。 需要高频滤波器在阻带处非常清晰地衰减信号，特别是靠近通带发射和接收频率，以提高频率的效率。 通过形成U型谐振器而不是直型谐振器，可以减小滤波器的重量。 通过在介质块的外壁处形成耦合控制槽，可以通过使用谐振器的开口端部分和短路部分之间的特性阻抗的差异，在低于通带的阻带处获得优异的衰减特性。

公开(公告)号：US06373352B1

公开(公告)日：2002-04-16

申请号：US09530322

申请日：2000-04-28

申请人： Chang Hwa Lee ,  Meyng Soo Kim ,  Bon Hee Koo ,  Dong Suk Jun ,  Sang Seok Lee ,  Tae Goo Choy

发明人： Chang Hwa Lee ,  Meyng Soo Kim ,  Bon Hee Koo ,  Dong Suk Jun ,  Sang Seok Lee ,  Tae Goo Choy

IPC分类号： H01P512

CPC分类号： H01P1/2136

摘要： A duplexer using a dielectric block and having stepped impedance resonators is disclosed. The duplexer comprising open ended resonators arranged in a front side of the dielectric block, shorted resonators arranged in a rear side of the dielectric block, first grooves for controlling receiving coupling at the receiving filter, second grooves for controlling transmitting coupling at the transmitting filter, and a plurality of recesses formed at the bottom of the dielectric block, extending from a first aperture of the open ended resonators to a second aperture of the shorted resonators. The duplexer according to this invention is miniaturized by excluding external elements and has excellent attenuation characteristics, and is being manufactured by simple processes.

摘要翻译： 公开了一种使用介质块并具有阶梯式阻抗谐振器的双工器。 该双工器包括布置在介质块的前侧的开放式谐振器，布置在介质块的后侧的短路的谐振器，用于控制在接收滤波器处的接收耦合的第一沟槽，用于控制在发射滤波器处的发射耦合的第二沟槽， 以及形成在所述介质块的底部处的多个凹部，从所述开口谐振器的第一孔延伸到所述短路谐振器的第二孔。 根据本发明的双工器通过排除外部元件而小型化并具有优异的衰减特性，并且通过简单的工艺制造。

公开(公告)号：US20090091405A1

公开(公告)日：2009-04-09

申请号：US12257333

申请日：2008-10-23

申请人： In Kui CHO ,  Jin Tae Kim ,  Myung Yung Jeong ,  Tae Goo Choy

发明人： In Kui CHO ,  Jin Tae Kim ,  Myung Yung Jeong ,  Tae Goo Choy

IPC分类号： H01P7/04 ,  H01P1/20 ,  H01P11/00

CPC分类号： H01P7/04 ,  H01P1/202 ,  Y10T29/49016

摘要： There are provided a resonator for use in a filter, which interprets and reduces intermodulation distortion by analyzing characteristics of current density occurring at resonance and linear and nonlinear characteristics of the filter, a method for manufacturing filters by using the resonator and a filter manufactured by the method. The resonator has a ratio of an inside diameter to an outside diameter belonging to a range which is larger than about 1:3 and smaller than or equal to about 1:3.75 and its length (H) is about λ/4, wherein λ is a wavelength of a plane wave provided to the resonator. By employing the method, it is possible to effectively design the filters through the use of a circuitry and structural approach with breaking from a conventional approach depending on local and minute processing steps when manufacturing the filters.

摘要翻译： 提供了一种用于滤波器的谐振器，其通过分析谐振发生的电流密度的特性和滤波器的线性和非线性特性来解释和减少互调失真，通过使用谐振器制造滤波器的方法和由 方法。 谐振器的内径与外径之比大于1：3且小于或等于1：3.75，其长度（H）约为λ/ 4，其中λ为 提供给谐振器的平面波的波长。 通过采用该方法，可以通过使用电路和结构方法来有效地设计滤波器，这取决于制造滤波器时的局部和微小的处理步骤，从常规方法断开。

公开(公告)号：US06619384B2

公开(公告)日：2003-09-16

申请号：US10093977

申请日：2002-03-08

申请人： Seok-Hwan Moon ,  Ho Gyeong Yun ,  Gunn Hwang ,  Tae Goo Choy ,  Joong Moo Park

发明人： Seok-Hwan Moon ,  Ho Gyeong Yun ,  Gunn Hwang ,  Tae Goo Choy ,  Joong Moo Park

IPC分类号： F28D1500

CPC分类号： F28D15/046

摘要： A heat pipe having a woven-wire wick and a straight fine-wire wick is disclosed. The heat pipe can be easily manufactured and improve a thermal performance of the heat pipe. The heat pipe includes a pipe container; a straight fine-wire wick located in the pipe container, wherein the straight fine-wire wick has a porosity; a woven-wire wick having a plurality of groups of wires spirally woven to form a substantially cylindrical wick, for contacting the straight fine-wire wick to an inner wall of the pipe container, wherein when the woven-wire wick is forced radially and inwardly in order for the woven-wire wick to be inserted into the pipe container, the woven-wire wick has restoration forces in a radial and outward direction from axis of the woven-wire wick and is tightly contact with the inner wall of the pipe container, and wherein ends of the straight fine-wire wick and the woven-wire wick are fixed to ends of the pipe container.