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公开(公告)号：US20210159794A1
公开(公告)日：2021-05-27
申请号：US16902349
申请日：2020-06-16
Inventor： Young Kyun CHO , Heon Kook KWON , Kwang Seon KIM , Tae Joong KIM , Kwangchun LEE , Jung Nam LEE , Jae Ho JUNG
IPC: H02M3/158
Abstract: A direct current-to-direct current (DC-DC) converter providing multiple operation modes includes a buck power stage configured to lower an input voltage, a boost power stage configured to increase the input voltage, and a multi-mode controller configured to control the buck power stage and the boost power stage, wherein the multi-mode controller is configured to generate a signal to control the buck power stage and the boost power stage according to the input voltage and an output voltage, and control the buck power stage and the boost power stage using the signal.
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公开(公告)号：US20150214624A1
公开(公告)日：2015-07-30
申请号：US14596367
申请日：2015-01-14
Inventor： Heon Kook KWON , Jung Nam LEE , Byung Su KANG , Jung Hoon OH , Kwangchun LEE
CPC classification number: H01Q1/243 , H01Q1/42 , H01Q1/521 , H01Q9/0421 , H01Q21/28
Abstract: Provided is a micro base station antenna including a substrate etched with first and second micro strip lines, a first inverted F antenna, a second inverted F antenna facing the first inverted F antenna, and an isolator provided between the first inverted F antenna and the second inverted F antenna. According to the present invention, a micro base station antenna that has a wide bandwidth, a high gain, and an enhanced isolation characteristic can be provided.
Abstract translation: 提供了一种微基站天线，包括用第一和第二微带线蚀刻的基板，第一倒F天线，面向第一倒F天线的第二倒F天线，以及设置在第一倒F天线与第二倒F天线之间的隔离器 倒F天线。 根据本发明，可以提供具有宽带宽，高增益和增强的隔离特性的微型基站天线。
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公开(公告)号：US20160218428A1
公开(公告)日：2016-07-28
申请号：US14993502
申请日：2016-01-12
Inventor： Jae Ho JUNG , Heon Kook KWON , Bong Hyuk PARK
IPC: H01Q3/26
CPC classification number: H01Q3/267 , H04B17/0085 , H04B17/12 , H04B17/14 , H04B17/21
Abstract: An error calibrating apparatus of an array antenna system according to an exemplary embodiment of the present invention is an error calibrating apparatus of an array transmitting antenna system having a plurality of array antennas and includes a calibrating signal generator which generates an error calibrating signal as a single frequency signal, in an area which does not interfere with a passband of a transmitted signal; an array RF transmitter which upwardly converts the transmitted signal into an RF band to transmit the signal to the plurality of array antennas; an error calibration estimator which correlates the error calibrating signal and the receiving single frequency signal received by passing through the array RF transmitter to estimate a transfer function of the array RF transmitter and extract a filter coefficient using the estimated transfer function; and a complex filter which calibrates an error of the transmitted signal by applying the filter coefficient to output the corrected transmitted signal to the array RF transmitter.
Abstract translation: 根据本发明的示例性实施例的阵列天线系统的误差校准装置是具有多个阵列天线的阵列发射天线系统的误差校准装置，并且包括校准信号发生器，该校准信号发生器产生作为单个的误差校准信号 在不干扰发送信号的通带的区域中的频率信号; 阵列RF发射器，其将所发射的信号向上转换成RF频带，以将信号传输到多个阵列天线; 误差校准估计器，其通过通过阵列RF发射器接收的误差校准信号和接收单频信号相关，以估计阵列RF发射机的传递函数，并使用估计的传递函数提取滤波器系数; 以及复数滤波器，其通过应用滤波器系数校正发射信号的误差，以将校正的发射信号输出到阵列RF发射机。
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Patent Agency Ranking
4.发明申请公开(公告)号：US20150288546A1
公开(公告)日：2015-10-08
申请号：US14636728
申请日：2015-03-03
Inventor： Heon Kook KWON , Myung Don KIM , Kwangchun LEE , Young Jun CHONG
CPC classification number: H04L25/061 , H04J11/004 , H04J11/0066 , H04L1/206 , H04L25/0212 , H04L27/22 , H04L27/3863
Abstract: A signal receiving device for measuring a characteristic of a wireless communication channel is provided. The signal receiving device includes an analog signal processor, an analog-digital converter, and a digital signal processor. The analog signal processor generates a band-limited signal by decreasing an intensity of a signal having an image frequency in a correlation operation result signal being a result of correlation operation, and generates an intermediate frequency signal by transforming the band-limited signal. The analog-digital converter converts the intermediate frequency signal into a digital signal. The digital signal processor generates a demodulated signal by performing in-phase/quadrature-phase modulation on the digital signal, the demodulated signal including a baseband signal, which includes a direct current component, and signals repeated at constant frequency intervals with a same bandwidth as the baseband signal, and generates an impulse response signal by decreasing intensities of the repeated signals in the demodulated signal.
Abstract translation: 提供了一种用于测量无线通信信道的特性的信号接收装置。 信号接收装置包括模拟信号处理器，模拟数字转换器和数字信号处理器。 模拟信号处理器通过减小作为相关运算结果的相关运算结果信号中具有图像频率的信号的强度来产生频带限制信号，并且通过变换频带限制信号来产生中频信号。 模数转换器将中频信号转换为数字信号。 数字信号处理器通过对数字信号执行同相/正交相位调制来产生解调信号，该解调信号包括包括直流分量的基带信号和以恒定频率间隔以与 基带信号，并且通过降低解调信号中的重复信号的强度来产生脉冲响应信号。
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公开(公告)号：US20230216211A1
公开(公告)日：2023-07-06
申请号：US17899729
申请日：2022-08-31
Inventor： Jung Nam LEE , Heon Kook KWON , Kwang Seon KIM
CPC classification number: H01Q21/064 , H01Q21/0006 , H01Q13/02
Abstract: A microwave beam-forming antenna may include: a main reflector installed on one surface of an antenna body; an array feed horn installed on a center portion of the main reflector; a sub-reflector disposed to be spaced apart from the array feed horn on the main reflector; and a plurality of waveguide feeds respectively connected to a plurality of horn antennas arranged in the array feed horn.
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公开(公告)号：US20210153200A1
公开(公告)日：2021-05-20
申请号：US17082429
申请日：2020-10-28
Inventor： Heon Kook KWON , Kwang Seon KIM , Jung Nam LEE , JAE HO JUNG , Young Kyun CHO
Abstract: A communication method and apparatuses performing the same. The communication method includes arranging first subcarriers of a first frequency domain and second subcarriers of a second frequency domain based on a mirror point and performing communication based on an orthogonal frequency-division multiplexing (OFDM) communication scheme using at least one of the first subcarriers and the second subcarriers.
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公开(公告)号：US20150230258A1
公开(公告)日：2015-08-13
申请号：US14612727
申请日：2015-02-03
Inventor： Heon Kook KWON , Byung Su KANG , Kwangchun LEE
CPC classification number: H04W72/082 , H04L5/14 , H04W72/0453
Abstract: A terminal for performing device-to-device (D2D) communication, according to an embodiment of the present invention, includes an antenna configured to transmit/receive an uplink channel signal and a downlink channel signal, a duplexer configured to separate a transmission/reception signal of the antenna into the uplink channel signal and the downlink channel signal, a switch configured to switch the uplink channel signal in a time division duplex (TDD) scheme so as to separate the uplink channel signal into an uplink transmission block and a first reception block, and a second reception block configured to convert the downlink channel signal provided from the duplexer into a baseband.
Abstract translation: 根据本发明的实施例的用于执行设备到设备（D2D）通信的终端包括被配置为发送/接收上行链路信道信号和下行链路信道信号的天线，被配置为分离发送/接收 天线的信号进入上行链路信道信号和下行链路信道信号，被配置为以时分双工（TDD）方式切换上行链路信道信号，以将上行链路信道信号分离成上行链路传输块和第一接收 以及第二接收块，被配置为将从双工器提供的下行链路信道信号转换为基带。
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公开(公告)号：US20150214634A1
公开(公告)日：2015-07-30
申请号：US14518714
申请日：2014-10-20
Inventor： Jung Nam LEE , Kwangchun LEE , Gweon Do JO , Heon Kook KWON , Byung Su KANG , Jung Hoon OH
Abstract: Provided is a dual-polarized dipole antenna. The dual-polarized dipole antenna includes a substrate etched as first and second microstrip lines and provided in a cube, first to fourth feeding lines etched as third microstrip lines and disposed in a square type in a vertical direction to the substrate, and first to fourth radiation patches disposed in a square type in the vertical direction to the first to fourth feeding unit, wherein the first to fourth feeding units are respectively disposed on adjacent pairs of the first to fourth radiation patches. According to the present invention, a miniature dual-polarized dipole antenna having a wide bandwidth, high isolation characteristics, and a high gain can be provided.
Abstract translation: 提供了双极化偶极天线。 双极化偶极天线包括被蚀刻为第一和第二微带线并被设置在立方体中的基板，被蚀刻为第三微带线的第一至第四馈电线并且沿垂直于基板的垂直方向设置为正方形，并且第一至第四 在与第一至第四馈电单元垂直的方向上设置为方形的辐射贴片，其中第一至第四馈电单元分别设置在相邻的第一至第四辐射贴片对上。 根据本发明，可以提供具有宽带宽，高隔离特性和高增益的微型双极化偶极天线。
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