公开(公告)号：US06946995B2

公开(公告)日：2005-09-20

申请号：US10637843

申请日：2003-08-08

申请人： Won Kyu Choi ,  Sig Pyo Cheol ,  Jong Moon Lee ,  Young Keun Yoon ,  Yong Heui Cho ,  Jong-Suk Chae ,  Jae Ick Choi

发明人： Won Kyu Choi ,  Sig Pyo Cheol ,  Jong Moon Lee ,  Young Keun Yoon ,  Yong Heui Cho ,  Jong-Suk Chae ,  Jae Ick Choi

IPC分类号： H01Q21/00 ,  H01Q1/40 ,  H01Q9/04 ,  H01Q19/06 ,  H01Q21/06 ,  H01Q1/36

CPC分类号： H01Q9/0414 ,  H01Q1/40 ,  H01Q19/062 ,  H01Q21/065

摘要： The present invention provides a microstrip patch antenna and array antenna using dielectric superstrate in order to enhance the antenna gain by stacking radiating patches and dielectric layers. The microstrip patch antenna using a dielectric superstrate for having high gain and wide bandwidth, includes: a lower patch antenna layer having a dielectric layer and a ground plane for radiating energy by exciting current by a feedline; a upper patch antenna layer having dielectric film electromagnetically coupled by the lower radiating patch; a foam layer for distancing the upper patch antenna layer from the lower patch antenna layer; and a dielectric superstrate located by being predeteremined distant from the upper patch antenna layer.

摘要翻译： 本发明提供一种使用电介质覆层的微带贴片天线和阵列天线，以通过堆放辐射片和电介质层来增强天线增益。 使用具有高增益和宽带宽的电介质覆层的微带贴片天线包括：具有介电层的下贴片天线层和用于通过馈线激励电流来辐射能量的接地平面; 具有通过下辐射贴片电磁耦合的介电膜的上贴片天线层; 用于将上贴片天线层与下贴片天线层隔开的泡沫层; 以及通过预定义远离上贴片天线层定位的介电覆盖层。

公开(公告)号：US07106264B2

公开(公告)日：2006-09-12

申请号：US10650406

申请日：2003-08-27

申请人： Jong Moon Lee ,  Yong Heui Cho ,  Jae Ick Choi ,  Sig Pyo Cheol ,  Jong-Suk Chae

发明人： Jong Moon Lee ,  Yong Heui Cho ,  Jae Ick Choi ,  Sig Pyo Cheol ,  Jong-Suk Chae

IPC分类号： H01Q13/10

CPC分类号： H01Q21/064 ,  H01Q13/10 ,  H01Q13/18 ,  H01Q21/0075

摘要： The present invention provides a broadband slot array antenna that can be implemented with lower cost by using a single dielectric layer and a metal layer, and makes easy to implement an active integrated antenna. The broadband slot antenna includes: a dielectric layer under which a microstrip feedline is formed; a ground formed on the dielectric layer and electromagnetically coupled with the microstrip antenna through a slot; and a reflection plane placed under the microstrip feedline in order to prevent board surface waves from being radiated and enhance antenna gain.

摘要翻译： 本发明提供一种可以通过使用单个电介质层和金属层以更低的成本实现的宽带时隙阵列天线，并且易于实现有源集成天线。 宽带缝隙天线包括：形成微带馈线的电介质层; 形成在电介质层上并通过狭槽与微带天线电磁耦合的接地; 以及放置在微带馈线下方的反射平面，以防止板表面波被辐射并增强天线增益。

公开(公告)号：US06232837B1

公开(公告)日：2001-05-15

申请号：US09417651

申请日：1999-10-14

申请人： Ki Suk Yoo ,  Sang Gee Kang ,  Jae Ick Choi ,  Jong Suk Chae

发明人： Ki Suk Yoo ,  Sang Gee Kang ,  Jae Ick Choi ,  Jong Suk Chae

IPC分类号： H03F126

CPC分类号： H03F1/3229

摘要： Provided with an optimal control method for an adaptive feedforward linear amplifier that includes an adaptive controller connected to first and second PLLs (Phase Locked Loops) respectively determining frequency bands for a main signal component and a distortion signal component. The adaptive controller adaptively controls control voltages of a first variable phase shifter and a first variable attenuator constituting a main signal cancellation loop and control voltages of a second variable phase shifter and a second variable attenuator constituting an error signal cancellation loop. The optimal control method includes the steps of: (a) after initialization of necessary parameters, reading a strength of an input signal, determining the initial optimal control voltages of the first and second variable phase shifters and the first and second variable attenuators, outputting the corresponding control voltages, and setting the first PLL to read a main signal strength of the main signal cancellation loop; (b) controlling the optimal control voltages of the first variable phase shifter and the first variable attenuator until the main signal strength becomes lower than a first threshold, if the main signal strength exceeds the first threshold; (c) determining the main signal strength read out from the error signal cancellation loop, if the main signal strength is greater than the first threshold, repeat step (b), otherwise; and (d) controlling the optimal control voltages for the second variable phase shifter and the second variable attenuator until the difference between the main signal strength and the distortion signal strength becomes lower than a second threshold, if the difference is greater than the second threshold.

摘要翻译： 提供了一种用于自适应前馈线性放大器的最佳控制方法，该自适应前馈线性放大器包括连接到分别确定主信号分量和失真信号分量的频带的第一和第二PLL（锁相环）的自适应控制器。 自适应控制器自适应地控制构成主信号消除环路的第一可变移相器和第一可变衰减器的控制电压以及构成误差信号消除环路的第二可变移相器和第二可变衰减器的控制电压。 最优控制方法包括以下步骤：（a）在必要参数初始化之后，读取输入信号的强度，确定第一和第二可变移相器以及第一和第二可变衰减器的初始最佳控制电压，输出 相应的控制电压，并设置第一PLL以读取主信号消除环路的主信号强度; （b）如果主信号强度超过第一阈值，则控制第一可变移相器和第一可变衰减器的最佳控制电压，直到主信号强度变得低于第一阈值为止; （c）确定从误差信号消除回路读出的主信号强度，如果主信号强度大于第一阈值，则重复步骤（b），否则; 以及（d）如果差值大于第二阈值，则控制第二可变移相器和第二可变衰减器的最佳控制电压，直到主信号强度和失真信号强度之间的差变得低于第二阈值。

公开(公告)号：US07057572B2

公开(公告)日：2006-06-06

申请号：US10700422

申请日：2003-11-03

申请人： Tae Yune Lee ,  Nak Seon Seong ,  Ji-Hoon Bae ,  Jong Suk Chae ,  Jae Ick Choi

发明人： Tae Yune Lee ,  Nak Seon Seong ,  Ji-Hoon Bae ,  Jong Suk Chae ,  Jae Ick Choi

IPC分类号： H01Q13/00

CPC分类号： H01Q13/0258 ,  H01Q13/0283

摘要： A horn antenna system having a strip line feeding structure of which size is reduced while cross polarized characteristics are kept. The horn antenna system, includes: a first horn antenna unit having a first horn antenna and a first ground made of metal, for radiating a signal; a second horn antenna unit having a second horn antenna and a second ground made of metal, for reflecting the signal to allow the second horn antenna unit to radiate the signal; and a feeding unit located between the first horn antenna unit and the second horn antenna unit, for feeding the energy to the first horn antenna unit and the second horn antenna unit, wherein the feeding unit is a stripe line.

摘要翻译： 喇叭天线系统具有在保持交叉极化特性的同时减小尺寸的带状线馈送结构。 喇叭天线系统包括：第一喇叭天线单元，具有第一喇叭天线和由金属制成的第一接地，用于发射信号; 具有第二喇叭天线和由金属制成的第二接地的第二喇叭天线单元，用于反射所述信号以允许所述第二喇叭天线单元辐射所述信号; 以及馈送单元，位于第一喇叭天线单元和第二喇叭天线单元之间，用于将能量馈送到第一喇叭天线单元和第二喇叭天线单元，其中馈送单元是条纹线。

公开(公告)号：US07099631B2

公开(公告)日：2006-08-29

申请号：US10380000

申请日：2003-03-04

申请人： Tae Yune Lee ,  Je Hoon Yun ,  Jae Ick Choi ,  Jong Hwa Kwon ,  Hyun Ho Park

发明人： Tae Yune Lee ,  Je Hoon Yun ,  Jae Ick Choi ,  Jong Hwa Kwon ,  Hyun Ho Park

IPC分类号： H04B1/06 ,  H04M1/00

CPC分类号： H04B1/3838 ,  H01Q1/245 ,  H01Q17/001

摘要： The present invention relates to a structure of an antenna and its shielding structure for a mobile phone which may significantly reduce the hazardous electromagnetic wave transmitted to the user's body. The present invention arranges a monopole antenna inside of the mobile phone housing, and installs an electromagnetic wave absorber between the antenna and the circuit board. The electromagnetic wave absorber can absorb the electromagnetic wave reflected form conductive plate constituting the circuit board. Thus, the adverse effect of the reflected electromagnetic wave to the performance of antenna is prevented and the amount of the electromagnetic wave to which the users is exposed can be significantly reduced as well.

摘要翻译： 本发明涉及一种天线及其屏蔽结构，用于移动电话，其可以显着减少传输到用户身体的危险电磁波。 本发明在手机外壳的内部设置单极天线，并且在天线和电路板之间安装电磁波吸收体。 电磁波吸收体可吸收构成电路板的导电板反射的电磁波。 因此，防止了反射电磁波对天线性能的不良影响，并且可以显着地减少用户暴露的电磁波的量。

公开(公告)号：US08188744B2

公开(公告)日：2012-05-29

申请号：US12538084

申请日：2009-08-07

申请人： Wangjoo Lee ,  Dong Ho Kim ,  Jeong Ho Ju ,  Jae Ick Choi

发明人： Wangjoo Lee ,  Dong Ho Kim ,  Jeong Ho Ju ,  Jae Ick Choi

IPC分类号： G01V3/00

CPC分类号： G01R33/341 ,  G01R33/34007 ,  G01R33/3642

摘要： An apparatus for detecting a magnetic field includes a coil type magnetic resonator having a resonant frequency with respect to a magnetic field varying at a particular frequency and a loop antenna inductively coupled to the coil type magnetic resonator.

摘要翻译： 用于检测磁场的装置包括：线圈型磁共振器，其具有相对于以特定频率变化的磁场的谐振频率和感应耦合到线圈型磁共振器的环形天线。

公开(公告)号：US08350759B2

公开(公告)日：2013-01-08

申请号：US12634276

申请日：2009-12-09

申请人： Jeong Ho Ju ,  Dong Ho Kim ,  Jae Ick Choi ,  Wang Joo Lee

发明人： Jeong Ho Ju ,  Dong Ho Kim ,  Jae Ick Choi ,  Wang Joo Lee

IPC分类号： H01Q1/38

CPC分类号： H01Q21/065 ,  H01Q15/0086

摘要： Provided is antenna having metamaterial and providing gain improvement and beamforming together. The antenna includes a resonator and a superstrate. A feed antenna is disposed in the resonator. The superstrate includes a conductive pattern on the resonator for improving gain and beamforming of the feed antenna.

摘要翻译： 提供了具有超材料并且提供增益改进和波束成形的天线。 天线包括谐振器和覆盖层。 馈电天线设置在谐振器中。 覆盖层包括谐振器上的导电图案，用于改善馈电天线的增益和波束成形。

公开(公告)号：US08811525B2

公开(公告)日：2014-08-19

申请号：US13356879

申请日：2012-01-24

申请人： Soon Young Eom ,  Young Bae Jung ,  Soon Ik Jeon ,  Jae Ick Choi

发明人： Soon Young Eom ,  Young Bae Jung ,  Soon Ik Jeon ,  Jae Ick Choi

IPC分类号： H04B7/06

CPC分类号： H01Q1/246 ,  H01Q3/26 ,  H01Q21/06 ,  H01Q21/245

摘要： The present invention relates to a general active array antenna apparatus capable of environmentally and temporally controlling radio frequency (RF) polarization resource necessary for wireless communication in order to improve communication quality and increase communication capacity. The antenna according to the present invention has a form of an active array antenna element, wherein each active array antenna element has a structure in which it may generate orthogonal dual polarizations and includes two input terminals and output terminals. An end orthogonal dual polarization antenna is connected to a polarization control apparatus that may process analog or digital signals, and the polarization control apparatus is controlled by or communicate with an antenna main controlling apparatus performing a polarization control algorithm. Ultimately, an object of this antenna apparatus is to improve communication quality and increase communication capacity.

摘要翻译： 本发明涉及能够环境和时间控制无线通信所需的射频（RF）极化资源的通用有源阵列天线装置，以提高通信质量并增加通信容量。 根据本发明的天线具有有源阵列天线元件的形式，其中每个有源阵列天线元件具有可以产生正交双极化的结构，并且包括两个输入端子和输出端子。 端正交双极化天线连接到可以处理模拟或数字信号的偏振控制装置，并且偏振控制装置由执行偏振控制算法的天线主控制装置控制或与其进行通信。 最终，该天线装置的目的是提高通信质量并增加通信容量。

公开(公告)号：US20100127707A1

公开(公告)日：2010-05-27

申请号：US12625371

申请日：2009-11-24

申请人： Wangjoo LEE ,  Dong Ho Kim ,  Jeong Ho Ju ,  Jae Ick Choi

发明人： Wangjoo LEE ,  Dong Ho Kim ,  Jeong Ho Ju ,  Jae Ick Choi

IPC分类号： G01R33/44

CPC分类号： G01R33/341 ,  G01R33/34007 ,  G01R33/34084 ,  G01R33/3628

摘要： Magnetic resonance imaging (MRI) devices detect a magnetic field having a particular frequency induced by hydrogen nuclei included in a human body and convert the detected magnetic field into two- or three-dimensional images, thereby visualizing the internal structure of the human body without causing any harm to the human body. The higher the resolution of an MRI technique, the more accurate a diagnosis can be obtained. Thus, various methods are introduced to improve resolutions. For example, a wearable magnetic resonator and an application device including the wearable magnetic resonator are provided. The wearable magnetic resonator is flexible and used to improve MRI resolution by amplifying MR signals while being attached to a human body to amplify MR signals when MRI is performed. The wearable magnetic resonator includes the following: a dielectric thin film that is flexible; and a conductor thin film that is disposed to have a split ring resonator (SRR) structure on the dielectric thin film and is flexible, wherein the wearable magnetic resonator includes an inductance component and a capacitance component, and the wearable magnetic resonator amplifies a magnetic field by resonating at a predetermined frequency, thereby improving a MRI resolution.

摘要翻译： 磁共振成像（MRI）装置检测具有由包括在人体中的氢核诱发的特定频率的磁场，并将检测到的磁场转换为二维或三维图像，从而可视化人体的内部结构而不引起 对人体有任何伤害。 MRI技术的分辨率越高，诊断越准确。 因此，引入了各种方法来改进分辨率。 例如，提供了一种耐磨磁性谐振器和包括耐磨磁性谐振器的应用装置。 可佩戴的磁共振器是灵活的，并且用于通过在附接到人体时放大MR信号来提高MRI分辨率，以在执行MRI时放大MR信号。 可佩戴磁共振器包括：柔性的电介质薄膜; 以及布置成在所述电介质薄膜上具有开环谐振器（SRR）结构并且是柔性的导体薄膜，其中所述可穿戴磁共振器包括电感分量和电容分量，并且所述耐磨磁性谐振器放大磁场 通过以预定频率谐振，从而提高MRI分辨率。

公开(公告)号：US6124832A

公开(公告)日：2000-09-26

申请号：US137528

申请日：1998-08-21

申请人： Soon Ik Jeon ,  Soon Young Eom ,  Cheol Sig Pyo ,  Jae Ick Choi ,  Choon Sik Yim

发明人： Soon Ik Jeon ,  Soon Young Eom ,  Cheol Sig Pyo ,  Jae Ick Choi ,  Choon Sik Yim

IPC分类号： H01Q23/00 ,  H01Q1/32 ,  H01Q3/38 ,  H01Q21/06 ,  H01Q25/00

CPC分类号： H01Q21/061 ,  H01Q1/3275 ,  H01Q25/00

摘要： This invention relates to a structure of an active antenna system of a mobile and a satellite navigation method using the system. The present invention provides a structure of an active antenna system of a mobile and a satellite tracking method using the system, in which beams are formed and then directed by using sub-array concept, the tracking accuracy becomes to high by using double beam satellite tracking mode for tracking the satellite, tracking loss is reduced and positions are more accurately tracked during movement using an absolute steering sensing mode.

摘要翻译： 本发明涉及使用该系统的移动卫星导航方式的有源天线系统的结构。 本发明提供了一种使用该系统的移动体和卫星跟踪方法的有源天线系统的结构，其中通过使用子阵列概念形成波束并随后引导，通过使用双波束卫星跟踪，跟踪精度变高 用于跟踪卫星的模式，减少跟踪损失，并且使用绝对转向感测模式在移动期间更精确地跟踪位置。