公开(公告)号：US20070047878A1

公开(公告)日：2007-03-01

申请号：US11450743

申请日：2006-06-08

申请人： Kwang Choi ,  Yong Chung ,  Young Kang ,  Dong Jun ,  Je Kim ,  Jong Moon

发明人： Kwang Choi ,  Yong Chung ,  Young Kang ,  Dong Jun ,  Je Kim ,  Jong Moon

IPC分类号： G02B6/36 ,  G02B6/12

CPC分类号： G02F1/0121 ,  G02B6/4201 ,  G02B6/4279 ,  H01L2224/48091 ,  H01L2924/3011 ,  H01L2924/00014 ,  H01L2924/00

摘要： Provided is an optical module used in a communication system employing a radio over fiber (ROF) technology delivering a radio frequency (RF) signal through an optical fiber. The optical module includes: an optical device; a signal line for transporting a radio frequency (RF) signal input from an external circuit to the optical device; and a resistor separately disposed from the signal line and having one end connected with the optical device, wherein the input impedance seen from the signal line is matched by the resistor. A bias voltage supplied to operate the optical device is applied through an inductor connected to the signal line between the optical device and a filter. Here, the filter formed by a pattern of the signal line prevents the bias voltage from being supplied to the external circuit. In order to amplify the RF signal input from the external circuit, an amplifier may be connected between the external circuit and the filter.

摘要翻译： 提供了一种用于通过光纤传送射频（RF）信号的无线电光纤（ROF）技术的通信系统中的光学模块。 光学模块包括：光学装置; 用于将从外部电路输入的射频（RF）信号传送到光学装置的信号线; 以及与信号线分开设置并且具有与光学装置连接的一端的电阻，其中从信号线看到的输入阻抗由电阻器匹配。 提供用于操作光学器件的偏置电压通过连接到光学器件和滤光器之间的信号线的电感器施加。 这里，由信号线的图案形成的滤波器防止偏置电压被提供给外部电路。 为了放大从外部电路输入的RF信号，可以在外部电路和滤波器之间连接放大器。

公开(公告)号：US20050140472A1

公开(公告)日：2005-06-30

申请号：US10919332

申请日：2004-08-17

申请人： Kyoung Ko ,  Dong Jun ,  Dong Kim ,  Hong Lee ,  Sang Lee

发明人： Kyoung Ko ,  Dong Jun ,  Dong Kim ,  Hong Lee ,  Sang Lee

IPC分类号： H01P1/203

CPC分类号： H01P1/20381

摘要： The present invention relates to a microstrip band pass filter and, more specifically, to a microstrip band pass filter using end-coupled stepped impedance resonators that can be used in a millimeter wave band, wherein the microstrip band pass filter comprises: a dielectric substrate; a conductor plate located on a lower surface of the dielectric substrate; and an input terminal, a plurality of SIRs and an output terminal located on an upper surface of the dielectric substrate in series, wherein the input terminal, the plurality of SIRs and the outputs terminal are conductors and end-coupled through gaps, whereby the microstrip band pass filter has a good attenuation characteristic and a narrowband characteristic, and is insensitive to the manufacturing error, and a fine frequency transition can be made without distortion just with width adjustment of the low impedance transmission line of the SIR.

摘要翻译： 微带带通滤波器技术领域本发明涉及一种微带带通滤波器，更具体地说，涉及一种使用可用于毫米波段的端耦合阶梯式阻抗谐振器的微带带通滤波器，其中微带带通滤波器包括：电介质基片; 位于所述电介质基板的下表面上的导体板; 以及输入端子，多个SIR和输出端子，其串联地位于电介质基板的上表面上，其中输入端子，多个SIR和输出端子是导体并通过间隙端接，由此微带 带通滤波器具有良好的衰减特性和窄带特性，对制造误差不敏感，只要SIR的低阻抗传输线的宽度调整就可以进行精细的频率转换。

公开(公告)号：US20070131971A1

公开(公告)日：2007-06-14

申请号：US11634614

申请日：2006-12-06

申请人： Yong Kim ,  Eun Nam ,  Ho Kim ,  Sang Lee ,  Dong Jun ,  Hong Lee ,  Seon Hong ,  Dong Kim ,  Jong Lim ,  Myoung Oh

发明人： Yong Kim ,  Eun Nam ,  Ho Kim ,  Sang Lee ,  Dong Jun ,  Hong Lee ,  Seon Hong ,  Dong Kim ,  Jong Lim ,  Myoung Oh

IPC分类号： H01L31/00

CPC分类号： H01L29/7371 ,  H01L29/0817 ,  H01L29/41708 ,  H01L29/66318

摘要： Provided are a hetero-junction bipolar transistor (HBT) that can increase data processing speed and a method of manufacturing the hetero-junction bipolar transistor. The HBT includes a semi-insulating compound substrate, a sub-collector layer formed on the semi-insulating compound substrate, a pair of collector electrodes disposed at a predetermined distance apart from each other on a predetermined portion of the sub-collector layer, a collector layer and a base layer disposed between the collector electrodes, a pair of base electrodes disposed at a predetermined distance apart from each other on a predetermined portion of the base layer, an emitter layer stack disposed between the base electrodes, and an emitter electrode that is formed on the emitter layer stack, and includes a portion having a line width wider than the line width of the emitter layer stack, wherein both sidewalls of the emitter electrode are respectively aligned with inner walls of the pair of base electrodes, and sidewalls of the collector layer and the base layer are located between outer sidewalls of the pair of base electrodes of the pair of base electrodes.

摘要翻译： 提供了可以提高数据处理速度的异质结双极晶体管（HBT）和制造异质结双极晶体管的方法。 HBT包括半绝缘复合基板，形成在半绝缘复合基板上的副集电极层，在副集电极层的预定部分上彼此隔开预定距离设置的一对集电极， 集电极层和设置在集电极之间的基极层，在基极层的预定部分上彼此隔开预定距离设置的一对基底电极，设置在基极之间的发射极层叠层和发射极电极， 形成在发射极层堆叠上，并且包括具有比发射极层堆叠的线宽宽的线宽的部分，其中发射极电极的两个侧壁分别与一对基底电极的内壁对齐，并且侧壁 集电极层和基极层位于该对基极的一对基极的外侧壁之间。

公开(公告)号：US20070120628A1

公开(公告)日：2007-05-31

申请号：US11588176

申请日：2006-10-25

申请人： Dong Jun ,  Kyoung Cho ,  Hong Lee ,  Dong Kim ,  Sang Lee

发明人： Dong Jun ,  Kyoung Cho ,  Hong Lee ,  Dong Kim ,  Sang Lee

IPC分类号： H01P1/207

CPC分类号： H01P1/2088

摘要： Provided is a dielectric waveguide filter. The filter includes: a multi-layered structure of dielectric substrates having first and second ground planes at its top and bottom; first, second, and third waveguide resonators disposed at multiple layers within the multi-layered structure; converters for signal transition between input/output ports and the first and third waveguide resonators; first vias for forming the first, second, and third waveguide resonators; and second vias disposed at a boundary surface of the first waveguide resonator and the third waveguide resonator.

摘要翻译： 提供了一种电介质波导滤波器。 该滤波器包括：绝缘基片的多层结构，其顶部和底部具有第一和第二接地平面; 设置在多层结构内的多层的第一，第二和第三波导谐振器; 转换器，用于输入/输出端口与第一和第三波导谐振器之间的信号转换; 用于形成第一，第二和第三波导谐振器的第一通孔; 以及设置在第一波导谐振器和第三波导谐振器的边界面处的第二通孔。

公开(公告)号：US20060114083A1

公开(公告)日：2006-06-01

申请号：US11150974

申请日：2005-06-13

申请人： Hong Lee ,  Dong Jun ,  Dong Kim ,  Sang Lee

发明人： Hong Lee ,  Dong Jun ,  Dong Kim ,  Sang Lee

IPC分类号： H01P1/203

CPC分类号： H01P1/2013 ,  H01P1/203

摘要： Provided is an air cavity module for a planar type filter operating in millimeter-wave frequency bands. The air cavity module includes: the planar type filter operating in the millimeter frequency bands; an air cavity having open side and top surfaces to mount the planar type filter therein; and an air cavity cover closing up the open top surface of the air cavity to allow the transmission of signals from and into the planar type filter. The air cavity module can lessen both transmission loss and radiation loss to improve the characteristics of the filter that operates in the millimeter-wave frequency bands.

摘要翻译： 提供了一种用于在毫米波频带中操作的平面型滤波器的空气腔模块。 空气腔模块包括：在毫米频带中操作的平面型过滤器; 具有开放侧面和顶面的空气腔，以将平面型过滤器安装在其中; 以及封闭空气腔的敞开的顶部表面以允许来自平面型过滤器的信号的传输的空气腔盖。 空气腔模块可以减小传输损耗和辐射损耗，以改善在毫米波频带中工作的滤波器的特性。

公开(公告)号：US20060082425A1

公开(公告)日：2006-04-20

申请号：US11136471

申请日：2005-05-25

申请人： Dong Jun ,  Hong Lee ,  Dong Kim ,  Kyoung Cho ,  Sang Lee

发明人： Dong Jun ,  Hong Lee ,  Dong Kim ,  Kyoung Cho ,  Sang Lee

IPC分类号： H01P1/203

CPC分类号： H01P1/203

摘要： Provided is a narrowband microstrip type bandpass filter adapted- to a home network, telematics, an intelligent traffic system, and a satellite Internet, the microstrip type bandpass filter comprising: an input terminal for receiving a predetermined signal; an output terminal for outputting a selection signal in a characteristic band; a first resonator electrically coupled with at least a portion of the input terminal; a second resonator electrically coupled with at least a portion of the first resonator; and a third resonator electrically coupled with at least a portion of the output terminal and the second resonator, and a magnetic coupling is provided using a cross coupling gap or a cross coupling line between non-adjacent resonators, so that a pattern can be simplified by optimizing the design and the manufacturing process to provide low-cost millimeter-wave parts, the manufacturing cost can be reduced by miniaturizing the parts, and the mass production can be readily realized.

摘要翻译： 提供了适用于家庭网络，远程信息处理，智能交通系统和卫星互联网的窄带微带型带通滤波器，微带型带通滤波器包括：用于接收预定信号的输入端; 输出端子，用于输出特征频带中的选择信号; 与所述输入端子的至少一部分电耦合的第一谐振器; 与所述第一谐振器的至少一部分电耦合的第二谐振器; 以及与输出端子和第二谐振器的至少一部分电耦合的第三谐振器，并且使用非相邻谐振器之间的交叉耦合间隙或交叉耦合线提供磁耦合，使得可以通过 优化设计和制造工艺以提供低成本的毫米波部件，可以通过使部件小型化来降低制造成本，并且可以容易地实现批量生产。