公开(公告)号：US20110128201A1

公开(公告)日：2011-06-02

申请号：US12953124

申请日：2010-11-23

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

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

IPC分类号： H01Q11/14 ,  H01P11/00

CPC分类号： H01Q15/244 ,  H01Q9/0428 ,  H01Q21/065 ,  Y10T29/49016

摘要： A circularly polarized antenna in a wireless communication system includes: at least one feed antenna positioned at a predetermined point on at least one ground substrate; and a unit antenna having a plurality of conductive structures arranged in a predetermined identical direction on a superstrate positioned at a predetermined distance from above the feed antenna. The plurality of conductive structures and the unit antenna are configured to radiate circularly polarized waves, respectively, when the feed antenna radiates linearly polarized waves.

摘要翻译： 无线通信系统中的圆极化天线包括：位于至少一个接地基板上的预定点处的至少一个馈电天线; 以及具有多个导电结构的单元天线，所述多个导电结构以预定的相同方向布置在位于距馈电天线上方预定距离的覆层上。 多个导电结构和单位天线被配置为当馈电天线辐射线偏振波时分别辐射圆偏振波。

公开(公告)号：US07675288B2

公开(公告)日：2010-03-09

申请号：US12182359

申请日：2008-07-30

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

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

IPC分类号： G01V3/00 ,  H01P7/00

CPC分类号： H03J3/20

摘要： Provided is a tunable magnetic field amplifying device capable of easily adjusting resonance frequencies and tuning usable bands by using discrete elements to vary electric properties of elements that are used for amplifying a magnetic field of a specific microwave band. The tunable magnetic field amplifying device includes a Swiss roll formed by winding a metal sheet coated with a dielectric in a spiral cylinder shape once or several times; and a tunable capacitor connected between an inner sheet of and an outer sheet of the metal sheet for tuning a resonance frequency.

摘要翻译： 提供了一种可调谐的磁场放大装置，其能够通过使用分立元件来容易地调节谐振频率和调谐可用频带，以改变用于放大特定微波频带的磁场的元件的电特性。 可调磁场放大装置包括通过将涂覆有电介质的金属片卷绕成螺旋圆筒形状一次或数次而形成的瑞士卷筒; 以及可调电容器，其连接在金属片的内片和外片之间，用于调谐谐振频率。

公开(公告)号：US20090153275A1

公开(公告)日：2009-06-18

申请号：US12182359

申请日：2008-07-30

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

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

IPC分类号： H03J3/20

CPC分类号： H03J3/20

摘要： Provided is a tunable magnetic field amplifying device capable of easily adjusting resonance frequencies and tuning usable bands by using discrete elements to vary electric properties of elements that are used for amplifying a magnetic field of a specific microwave band. The tunable magnetic field amplifying device includes a Swiss roll formed by winding a metal sheet coated with a dielectric in a spiral cylinder shape once or several times; and a tunable capacitor connected between an inner sheet of and an outer sheet of the metal sheet for tuning a resonance frequency.

摘要翻译： 提供了一种可调谐的磁场放大装置，其能够通过使用分立元件来容易地调节谐振频率和调谐可用频带，以改变用于放大特定微波频带的磁场的元件的电特性。 可调磁场放大装置包括通过将涂覆有电介质的金属片卷绕成螺旋圆筒形状一次或数次而形成的瑞士卷筒; 以及可调电容器，其连接在金属片的内片和外片之间，用于调谐谐振频率。

公开(公告)号：US08525731B2

公开(公告)日：2013-09-03

申请号：US12913985

申请日：2010-10-28

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

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

IPC分类号： H01Q1/38

CPC分类号： H01Q9/42 ,  H01Q1/243 ,  H01Q1/36 ,  H01Q9/0407

摘要： A small antenna using an SRR structure in a wireless communication system includes: a first radiation unit positioned over a dielectric substrate formed of a predetermined dielectric medium and having a predetermined ring shape; a feed unit positioned over the dielectric substrate and configured to feed a signal to the first radiation unit; a second radiation unit positioned under the dielectric substrate and having a predetermined ring shape; a via formed through the dielectric substrate to connect the first and second radiation units; a ground unit positioned under the dielectric substrate and configured to ground the first and second radiation units; and a metal line unit positioned under the dielectric substrate to connect the second radiation unit and the ground unit. The feed unit includes first and second capacitors which accomplish impedance matching when the signal is fed to the first radiation unit.

摘要翻译： 在无线通信系统中使用SRR结构的小天线包括：第一辐射单元，其位于由预定电介质形成且具有预定环形的电介质基板上; 定位在所述电介质基底上并被配置为将信号馈送到所述第一辐射单元的馈送单元; 第二辐射单元，位于所述电介质基底下方并具有预定的环形; 通过所述电介质基板形成的通孔，以连接所述第一和第二辐射单元; 位于所述电介质基板下方并被配置为对所述第一和第二辐射单元进行接地的接地单元; 以及位于所述电介质基板下方的金属线单元，以连接所述第二辐射单元和所述接地单元。 馈送单元包括当信号被馈送到第一辐射单元时实现阻抗匹配的第一和第二电容器。

公开(公告)号：US20110241798A1

公开(公告)日：2011-10-06

申请号：US13070537

申请日：2011-03-24

申请人： Ju-Yeon HONG ,  Jeong-Ho Ju ,  Dong-Ho Kim ,  Young-Jun Chong ,  Wangjoo Lee ,  Jae-Ick Choi

发明人： Ju-Yeon HONG ,  Jeong-Ho Ju ,  Dong-Ho Kim ,  Young-Jun Chong ,  Wangjoo Lee ,  Jae-Ick Choi

IPC分类号： H03H7/01

CPC分类号： H03H7/0115 ,  H03H7/175 ,  H03H7/1775 ,  H03H7/1791

摘要： Provided are a resonator and a filter performing a filtering operation by using the resonator. The filter includes a first resonation unit connected in series to an input terminal and having a first resonant frequency, a filtering unit connected in series to the first resonation unit to filter a signal inputted through the input terminal, a second resonation unit connected in series between the filtering unit and an output terminal and having a second resonant frequency, a first zero-order resonation unit connected in parallel to a connection terminal between the input terminal and the first resonation unit and having a first zero-order resonant frequency equal to the first resonant frequency, and a second zero-order resonation unit connected in parallel to a connection terminal between the output terminal and the second resonation unit and having a second zero-order resonant frequency equal to the second resonant frequency.

摘要翻译： 提供了通过使用谐振器来执行滤波操作的谐振器和滤波器。 滤波器包括串联连接到输入端并具有第一谐振频率的第一谐振单元，与第一谐振单元串联连接以对通过输入端输入的信号进行滤波的滤波单元，串联连接的第二谐振单元 所述滤波单元和输出端子具有第二谐振频率，第一零级谐振单元并联连接到所述输入端子和所述第一谐振单元之间的连接端子并且具有等于所述第一谐振频率的第一零级谐振频率 谐振频率和与输出端子和第二谐振单元之间的连接端并联连接并具有等于第二谐振频率的第二零级谐振频率的第二零级谐振单元。

公开(公告)号：US08098213B2

公开(公告)日：2012-01-17

申请号：US12307593

申请日：2007-07-06

申请人： Dong-Ho Kim ,  Jae-Ick Choi ,  Dong-Uk Sim ,  Jong-Hwa Kwon ,  Hyung-Do Choi

发明人： Dong-Ho Kim ,  Jae-Ick Choi ,  Dong-Uk Sim ,  Jong-Hwa Kwon ,  Hyung-Do Choi

IPC分类号： H01Q15/00

CPC分类号： H01P1/20381

摘要： There is provided provided a frequency selective surface (FSS) structure for filtering a single frequency band, including: a plurality of unit cells arranged at a predetermined distance, wherein each of the unit cells includes: a substrate; a circular loop formed on the substrate with a predetermined width and having at least one of meanderingly bent portions, wherein a filtering frequency band is controlled by a length of the circular loop, a width of the circular loop, a distance between the unit cells, and a thickness and dielectric constant of dielectric.

摘要翻译： 提供了用于对单个频带进行滤波的频率选择表面（FSS）结构，包括：以预定距离布置的多个单位单元，其中每个单位单元包括：基板; 形成在所述基板上的预定宽度的圆环，并且具有曲折弯曲部分中的至少一个，其中滤波频带由所述圆形环的长度，所述圆形环的宽度，所述单元电池之间的距离， 以及电介质的厚度和介电常数。

公开(公告)号：US20110148736A1

公开(公告)日：2011-06-23

申请号：US12900730

申请日：2010-10-08

申请人： Jae-Hoon Choi ,  Jae-Ick Choi ,  Dong-Ho Kim ,  Hae-II Jung ,  Jung-Pyo Kim ,  Young-Ki Lee

发明人： Jae-Hoon Choi ,  Jae-Ick Choi ,  Dong-Ho Kim ,  Hae-II Jung ,  Jung-Pyo Kim ,  Young-Ki Lee

IPC分类号： H01Q1/52 ,  H01Q21/00

CPC分类号： H01Q1/521 ,  H01Q1/38 ,  H01Q21/28

摘要： A multi-input multi-output (MIMO) antenna for improving isolation is provided. Split ring resonators (SRRs) are structurally arranged on the lower end of a ground surface between a plurality of antenna patterns spaced apart from each other. Accordingly, permeability of the SRRs has a negative value, which prevents current from flowing between antennas. Consequently, the isolation characteristic of the antennas is improved.

摘要翻译： 提供了一种用于提高隔离度的多输入多输出（MIMO）天线。 分裂环形谐振器（SRR）结构地布置在彼此间隔开的多个天线图案之间的地表面的下端。 因此，SRR的磁导率具有负值，防止电流在天线之间流动。 因此，改善了天线的隔离特性。

公开(公告)号：US20090201220A1

公开(公告)日：2009-08-13

申请号：US12295910

申请日：2006-12-04

申请人： Dong-Ho Kim ,  Jae-Ick Choi ,  Dong-Uk Sim ,  Jong-Hwa Kwon

发明人： Dong-Ho Kim ,  Jae-Ick Choi ,  Dong-Uk Sim ,  Jong-Hwa Kwon

IPC分类号： H01Q1/00 ,  H01Q1/38

CPC分类号： H01Q15/006 ,  H01Q9/285

摘要： Provided are a high impedance surface structure using an AMC (artificial magnetic conductor) and an antenna and an electromagnetic device using the high impedance surface structure. The high impedance surface structure includes: a ground layer formed of a first conductor layer; a first dielectric layer formed on the ground layer; and an HIS (high impedance surface) layer formed of second conductor layers and a second dielectric layer on the first dielectric layer, wherein the second conductor layers are interdigitated with one another and vias connecting the second conductor layers to the ground layer are not formed.

摘要翻译： 提供了使用AMC（人造磁导体）和天线的高阻抗表面结构和使用高阻抗表面结构的电磁装置。 高阻抗表面结构包括：由第一导体层形成的接地层; 形成在所述接地层上的第一电介质层; 以及由第二导体层形成的HIS（高阻抗表面）层和在第一电介质层上的第二电介质层，其中第二导体层彼此交错，并且不形成将第二导体层连接到接地层的通孔。

公开(公告)号：US20080079638A1

公开(公告)日：2008-04-03

申请号：US11645498

申请日：2006-12-27

申请人： Hyung-Do Choi ,  Dong-Ho Kim ,  Dong-Uk Sim ,  Jae-Ick Choi ,  Ae-Kyoung Lee

发明人： Hyung-Do Choi ,  Dong-Ho Kim ,  Dong-Uk Sim ,  Jae-Ick Choi ,  Ae-Kyoung Lee

IPC分类号： H01Q1/24

CPC分类号： H01Q1/273 ,  H01Q1/243 ,  H01Q1/245 ,  H01Q1/38 ,  H01Q1/52 ,  H01Q17/002

摘要： A method of reducing electromagnetic field using metamaterial and a terminal having a structure for reducing an electromagnetic field using a metamaterial are provided. The method includes the steps of: deciding a body contacting part of a portable terminal or a wearable terminal; and disposing an electromagnetic field absorption member formed of metamaterial between an antenna and the decided body contacting part.

摘要翻译： 提供了一种使用超材料减少电磁场的方法和具有使用超材料减少电磁场的结构的端子。 该方法包括以下步骤：确定便携式终端或可穿戴终端的身体接触部分; 并且在天线和所决定的身体接触部分之间设置由超材料形成的电磁场吸收构件。

公开(公告)号：US08729980B2

公开(公告)日：2014-05-20

申请号：US12938503

申请日：2010-11-03

申请人： Dong-Ho Kim ,  Jae-Ick Choi ,  Sungtek Kahng ,  Geonho Jang

发明人： Dong-Ho Kim ,  Jae-Ick Choi ,  Sungtek Kahng ,  Geonho Jang

IPC分类号： H01P1/20 ,  H03H7/01

CPC分类号： H01P1/203 ,  H01P1/2135

摘要： A CRLH resonator-based band-pass filter includes at least two CRLH resonators. The resonators are connected by capacitive coupling. The resonators includes a microstrip line having input and output ports. The microstrip line includes a first interdigital line serial-connected to the input port, a second interdigital line serial-connected to the output port, a connection line connecting the first and second interdigital lines, and an inductor line parallel-connected to the connection line and provided with a grounded end.

摘要翻译： 基于CRLH谐振器的带通滤波器包括至少两个CRLH谐振器。 谐振器通过电容耦合连接。 谐振器包括具有输入和输出端口的微带线。 微带线包括串联连接到输入端口的第一叉指线，串联连接到输出端口的第二叉指线，连接第一和第二叉指线的连接线以及并联连接到连接线的电感线 并提供了一个接地端。