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1. 发明授权

US09397391B2 M-type hexaferrite antennas for use in wireless communication devices 有权
标题翻译：用于无线通信设备的M型六边形天线
公开(公告)号：US09397391B2
公开(公告)日：2016-07-19
申请号：US13885374
申请日：2011-11-15
申请人： Yang-Ki Hong , Seok Bae , Jae-Jin Lee
发明人： Yang-Ki Hong , Seok Bae , Jae-Jin Lee
IPC分类号： B05D5/12 , H01Q1/36 , H01F1/34 , H01Q1/22 , H01Q1/38
CPC分类号： H01Q1/364 , H01F1/348 , H01Q1/2283 , H01Q1/38 , Y10T29/49016
摘要： An antenna is fabricated using an M-type hexaferrite, such as a tin (Sn) and zinc (Zn) substituted M-type strontium hexaferrite (Sn/Zn-substituted SrM: SrFe12−2xZnxSnxO19), thereby enabling antenna miniaturization, broad bandwidth, and high gain. In one embodiment, an antenna system has a substrate and a chip antenna formed on the substrate. The system also has a conductive radiator contacting the chip antenna, and the chip antenna comprises an M-type strontium hexaferrite for which Fe cations are substituted with tin (Sn) and zinc (Zn) to achieve soft magnetic properties for the antenna. Thus, the coercivity and permeability are lower and higher, respectively, than those of pure SrM. Such fabricated hexaferrite chip antennas have broadband characteristics and show good radiation performance at various frequencies, including in the GHz frequency range.
摘要翻译：使用诸如锡（Sn）和锌（Zn）取代的M型六方铁氧锶（Sn / Zn取代的SrM：SrFe12-2xZnxSnxO19）的M型六铁素制造天线，从而使天线小型化，宽带宽，和高增益。在一个实施例中，天线系统具有形成在基板上的基板和芯片天线。该系统还具有与芯片天线接触的导电散热器，并且芯片天线包括M型六方铁氧体，其中Fe阳离子被锡（Sn）和锌（Zn）所取代，以获得天线的软磁特性。因此，矫顽力和渗透率分别低于纯SrM的矫顽力和渗透率。这种制造的六方铁芯片天线具有宽带特性，并且在各种频率（包括在GHz频率范围内）表现出良好的辐射性能。

2. 发明授权

US09190723B1 Multi-input and multi-output (MIMO) antenna system with absorbers for reducing interference 有权
标题翻译：多输入多输出（MIMO）天线系统，具有减少干扰的吸收器
公开(公告)号：US09190723B1
公开(公告)日：2015-11-17
申请号：US13247515
申请日：2011-09-28
申请人： Yang-Ki Hong , Seok Bae , Jae-Jin Lee
发明人： Yang-Ki Hong , Seok Bae , Jae-Jin Lee
IPC分类号： H01Q1/52 , H01Q21/28
CPC分类号： H01Q9/42 , H01Q1/52 , H01Q1/521 , H01Q17/00 , H01Q21/28 , H04B7/0413
摘要： A Multi-Input-Multi-Output (MIMO) system has multiple radiation elements and absorbers disposed on a substrate. The absorbers are positioned about the radiation elements to reduce the interference between the radiation elements. Use of the absorbers permits interference levels comparable to conventional MIMO systems using spatial diversity without requiring the antennas to be separated by at least one-half of the wavelength of the communicated signals. A ground plane on the substrate is also positioned on the substrate to enhance antenna system performance.
摘要翻译：多输入多输出（MIMO）系统具有设置在基板上的多个辐射元件和吸收体。吸收体围绕辐射元件定位以减小辐射元件之间的干扰。吸收体的使用允许与使用空间分集的常规MIMO系统相当的干扰水平，而不需要将天线分离通信信号的波长的至少一半。衬底上的接地平面也位于衬底上，以增强天线系统性能。

3. 发明申请

US20140320365A1 MAGNETIC ANTENNA STRUCTURES 审中-公开
标题翻译：磁性天线结构
公开(公告)号：US20140320365A1
公开(公告)日：2014-10-30
申请号：US14263251
申请日：2014-04-28
申请人： Yang-Ki Hong , Jaejin Lee
发明人： Yang-Ki Hong , Jaejin Lee
IPC分类号： H01Q1/38
CPC分类号： H01Q1/38 , H01Q1/20 , H01Q1/243 , H01Q1/521 , H01Q9/42 , H01Q21/28
摘要： A magnetic antenna structure has a substrate (e.g., a flexible printed circuit board (PCB) carrier), a magneto-dielectric (MD) layer, and an antenna radiator. The MD layer increases electromagnetic (EM) energy radiation by lowering the EM energy concentrated on the antenna substrate. The resonant frequency and antenna gain of the magnetic antenna structure are generally lower and higher, respectively, relative to dielectric antennas of comparable size. Thus, the magnetic antenna structure provides better miniaturization and high performance with good conformability.
摘要翻译：磁性天线结构具有基板（例如柔性印刷电路板（PCB）载体），磁电介质（MD）层和天线辐射器。 MD层通过降低集中在天线基板上的EM能量来增加电磁（EM）能量辐射。磁体天线结构的谐振频率和天线增益分别相对于相当尺寸的电介质天线分别越来越低。因此，磁性天线结构提供更好的小型化和高性能以及良好的适应性。

4. 发明申请

US20140159973A1 DUAL-POLARIZED MAGNETIC ANTENNAS 有权
标题翻译：双极磁性天线
公开(公告)号：US20140159973A1
公开(公告)日：2014-06-12
申请号：US14092414
申请日：2013-11-27
申请人： Yang-Ki Hong , Woncheo Lee
发明人： Yang-Ki Hong , Woncheo Lee
IPC分类号： H01Q1/36
CPC分类号： H01Q1/36 , H01Q1/38 , H01Q7/08
摘要： The present disclosure generally pertains to dual-polarized magnetic antennas that may be used in various applications and are particularly suited for use in mobile devices and systems. In one exemplary embodiment, a dual-polarized antenna has a ferrite substrate that provides for the use of small antenna elements and also provides broad bandwidth and good impedance matching and isolation making the antenna attractive for use in mobile applications. Such antenna also has nearly omnidirectional radiation patterns and orthogonal polarizations. Further, the radiator type may be selected depending on the desired effective permeability in order to control return loss, isolation, and fractional bandwidth (FBW).
摘要翻译：本公开通常涉及可以用于各种应用中并且特别适用于移动设备和系统的双极化磁性天线。在一个示例性实施例中，双极化天线具有提供使用小天线元件的铁氧体衬底，并且还提供宽带宽和良好的阻抗匹配和隔离，使天线具有吸引力用于移动应用。这种天线也具有近乎全向的辐射图和正交偏振。此外，可以根据期望的有效磁导率来选择散热器类型，以便控制回波损耗，隔离和分数带宽（FBW）。

5. 发明授权

US09627747B2 Dual-polarized magnetic antennas 有权
公开(公告)号：US09627747B2
公开(公告)日：2017-04-18
申请号：US14092414
申请日：2013-11-27
申请人： Yang-Ki Hong , Woncheo Lee
发明人： Yang-Ki Hong , Woncheo Lee
IPC分类号： H01Q1/00 , H01Q7/08 , H01Q1/36 , H01Q1/38
CPC分类号： H01Q1/36 , H01Q1/38 , H01Q7/08
摘要： The present disclosure generally pertains to dual-polarized magnetic antennas that may be used in various applications and are particularly suited for use in mobile devices and systems. In one exemplary embodiment, a dual-polarized antenna has a ferrite substrate that provides for the use of small antenna elements and also provides broad bandwidth and good impedance matching and isolation making the antenna attractive for use in mobile applications. Such antenna also has nearly omnidirectional radiation patterns and orthogonal polarizations. Further, the radiator type may be selected depending on the desired effective permeability in order to control return loss, isolation, and fractional bandwidth (FBW).

6. 发明授权

US09406418B2 Magnetic exchange coupled core-shell nanomagnets 有权
公开(公告)号：US09406418B2
公开(公告)日：2016-08-02
申请号：US14741217
申请日：2015-06-16
申请人： Yang-Ki Hong , Seok Bae
发明人： Yang-Ki Hong , Seok Bae
IPC分类号： G01R33/383 , H01F1/03 , H01F3/00 , H01F1/00 , H01F1/06 , G11B5/706
CPC分类号： H01F1/0302 , G11B5/706 , H01F1/0054 , H01F1/061 , H01F3/00
摘要： A permanent magnet is fabricated such that it has a magnetically hard core surrounded by a thin magnetically soft shell. The magnetically hard core provides a relatively high intrinsic coercivity (Hci), and the magnetically soft shell provides a relatively high magnetic flux density (B). Due to magnetic exchange coupling between the core and shell, a relatively high maximum energy product (BH)max is achievable over a wide temperature range, including temperatures above 150° C. Further, such effects can be achieved without using rare-earth metals or precious metals helping to keep the manufacturing costs of the magnet low. To allow sufficient exchange magnetic coupling between the core and shell, the width of the shell is less than about 40 nanometers, and the overall dimensions are controlled such that the width of the shell is less than two times the Bloch domain wall thickness of the core.

7. 发明授权

US09330826B1 Integrated architecture for power converters 有权
标题翻译：电源转换器的集成架构
公开(公告)号：US09330826B1
公开(公告)日：2016-05-03
申请号：US13027081
申请日：2011-02-14
申请人： Jaber A. Abu Qahouq , Yang-Ki Hong , Seok Bae
发明人： Jaber A. Abu Qahouq , Yang-Ki Hong , Seok Bae
IPC分类号： H01F5/00 , H01F17/00 , H01F27/28
CPC分类号： H01F17/0013 , H01F17/0006 , H01F27/2804 , H01F27/40 , H02M3/1584 , H02M2001/0064
摘要： A power converter having components enclosed by legs of a first inductor is described. The first inductor is fabricated on the top surface of a substrate along the perimeter of the substrate. A second inductor is fabricated on the bottom surface of the substrate and mirrors the first inductor. Electromagnetic cancellation is provided when the current flow in the second inductor is opposite of the current flow in the first inductor.
摘要翻译：描述了具有由第一电感器的腿部包围的部件的功率转换器。第一电感器沿着衬底的周边被制造在衬底的顶表面上。第二电感器被制造在衬底的底表面上并且反射第一电感器。当第二电感器中的电流与第一电感器中的电流相反时，提供电磁消除。

8. 发明授权

US09263950B2 Coupled inductors for improved power converter 有权
标题翻译：用于改进功率转换器的耦合电感器
公开(公告)号：US09263950B2
公开(公告)日：2016-02-16
申请号：US13098865
申请日：2011-05-02
申请人： Jaber A. Abu Qahouq , Yang-Ki Hong , Seok Bae
发明人： Jaber A. Abu Qahouq , Yang-Ki Hong , Seok Bae
IPC分类号： H01F5/00 , H01F27/28 , H02M3/158 , H02M3/156
CPC分类号： H02M3/1584 , H02M3/156
摘要： The disclosure relates to inductors fabricated on a substrate. A first inductor is formed by depositing conducting material on a first side of the substrate and a second inductor is formed by depositing material on a second side of the substrate. The inductors have the same cross section and the paths of the conducting materials are mirror images and provide magnetic flux on a portion of the substrate when equal currents flow in the inductors.
摘要翻译：本公开涉及制造在基板上的电感器。通过在衬底的第一侧上沉积导电材料形成第一电感器，并且通过在衬底的第二侧上沉积材料形成第二电感器。电感器具有相同的横截面，并且导电材料的路径是镜像，并且当等电流在电感器中流动时，在衬底的一部分上提供磁通量。

9. 发明授权

US08886117B1 Through-the-earth (TTE) communication systems and methods 有权
标题翻译：通信（TTE）通信系统和方法
公开(公告)号：US08886117B1
公开(公告)日：2014-11-11
申请号：US13043249
申请日：2011-03-08
申请人： Yang-Ki Hong , Seok Bae
发明人： Yang-Ki Hong , Seok Bae
IPC分类号： H04B13/02
CPC分类号： H04B13/02
摘要： A through-the-earth (TTE) communication system has a transmitter that uses an electromagnetic antenna to propagate a magnetic communication signal through the earth. The antenna comprises a coil that is wrapped a core of magnetic material. The transmitter converts voice into a pulsed direct current (DC) signal that is applied to the coil of the antenna. The antenna transforms the pulsed DC signal into a pulsed DC magnetic field that propagates through the earth, and the DC magnetic field may pass through soil, water, or other substances within the earth. A receiver at the earth's surface or other location senses the pulsed magnetic field and converts the sensed magnetic energy into a voice signal.
摘要翻译：通过地球（TTE）通信系统具有使用电磁天线通过地球传播磁通信信号的发射机。天线包括缠绕磁性材料芯的线圈。发射器将语音转换成施加到天线线圈的脉冲直流（DC）信号。天线将脉冲直流信号转换成通过地球传播的脉冲直流磁场，直流磁场可能通过土壤，水或其他物质在地球内。地球表面或其他位置处的接收器感测脉冲磁场，并将感测到的磁能转换成声音信号。

10. 发明申请

US20120025791A1 COUPLED INDUCTORS FOR IMPROVED POWER CONVERTER 有权
标题翻译：用于改进功率转换器的耦合电感器
公开(公告)号：US20120025791A1
公开(公告)日：2012-02-02
申请号：US13098865
申请日：2011-05-02
申请人： Jaber A. Abu Qahouq , Yang-Ki Hong , Seok Bae
发明人： Jaber A. Abu Qahouq , Yang-Ki Hong , Seok Bae
IPC分类号： G05F1/46 , H01F5/00
CPC分类号： H02M3/1584 , H02M3/156
摘要： The disclosure relates to inductors fabricated on a substrate. A first inductor is formed by depositing conducting material on a first side of the substrate and a second inductor is formed by depositing material on a second side of the substrate. The inductors have the same cross section and the paths of the conducting materials are mirror images and provide magnetic flux on a portion of the substrate when equal currents flow in the inductors.
摘要翻译：本公开涉及制造在基板上的电感器。通过在衬底的第一侧上沉积导电材料形成第一电感器，并且通过在衬底的第二侧上沉积材料形成第二电感器。电感器具有相同的横截面，并且导电材料的路径是镜像，并且当等电流在电感器中流动时，在衬底的一部分上提供磁通量。

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