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公开(公告)号：US20210242948A1
公开(公告)日：2021-08-05
申请号：US17160631
申请日：2021-01-28
Inventor： Sunwoo KONG , Kwang Seon KIM , Jeehoon PARK , HUI DONG LEE , Seunghyun JANG , SEOK BONG HYUN
Abstract: An array antenna system, and a calibration method and apparatus thereof are provided. The calibration method includes measuring a signal loop including mutual coupling between antennas included in an array antenna, calculating a ratio of a reception (RX) signal received by each antenna to an RX signal received by a reference antenna of the array antenna based on a result of the measuring, and performing calibration of the array antenna based on the ratio.
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公开(公告)号：US20230198144A1
公开(公告)日：2023-06-22
申请号：US17871608
申请日：2022-07-22
Inventor： Bong Hyuk PARK , Sunwoo KONG , Hui Dong LEE , Seunghyun JANG , Seok Bong HYUN
CPC classification number: H01Q3/28 , H01Q21/062 , H01Q9/16
Abstract: Provided is a terahertz wideband antenna and a method for designing the same. According to various embodiments, the wideband antenna used for mobile communication in the terahertz wave communication band may include an antenna board including a first surface and a second surface opposite to the first surface, and a plurality of dipole antennas arranged on the antenna board, each of the plurality of dipole antennas may include a feeder disposed on the first surface and a radiator disposed on the second surface and physically spaced apart from the feeder, the feeder may be wire-bonded to a corresponding channel of a plurality of channels of a beam former, and the radiator may be coupled to the feeder to receive a signal from the feeder.
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3.发明申请公开(公告)号：US20150078500A1
公开(公告)日：2015-03-19
申请号：US14294836
申请日：2014-06-03
Inventor： Sung Jun LEE , Young Kyun CHO , Seunghyun JANG , Bong Hyuk PARK , JAE HO JUNG , Kwangchun LEE
IPC: H04L7/00
CPC classification number: H04L7/0016 , H04L27/366 , H04L27/02 , H04L27/361
Abstract: Provided is a method of correcting a time misalignment between envelope and phase components in a transmitting apparatus which separates envelope and phase components of a signal, processes them, and then recombines them to transmit the recombined signal. For this, in a method of correcting a time misalignment between envelope and phase components according to an embodiment of the present invention, a time misalignment is corrected by applying a time delay to at least one of envelope and phase components in digital and analog signal processing operations, or applying a time delay to an envelope or phase component by a pre-processing operation.
Abstract translation: 提供了一种校正发送装置中的包络和相位分量之间的时间偏移的方法，该发送装置分离信号的包络和相位分量，处理它们，然后将它们复合以发送重组信号。 为此，在根据本发明的实施例的校正包络和相位分量之间的时间失准的方法中，通过对数字和模拟信号处理中的包络和相位分量中的至少一个应用时间延迟来校正时间偏移 操作或通过预处理操作对信封或相位分量施加时间延迟。
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公开(公告)号：US20220337192A1
公开(公告)日：2022-10-20
申请号：US17665405
申请日：2022-02-04
Inventor： Sunwoo KONG , Bong Hyuk PARK , HUI DONG LEE , Seunghyun JANG , SEOK BONG HYUN
Abstract: A method and apparatus for input matching of a passive mixer are disclosed. The passive mixer includes a differential transistor pair including a first transistor and a second transistor, a first inductor having one end connected to the first transistor and another end connected to a ground, a second inductor having one end connected to the second transistor and another end connected to a ground, and a third inductor having one end for receiving a radio frequency (RF) signal and another end connected to a ground.
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公开(公告)号：US20210240211A1
公开(公告)日：2021-08-05
申请号：US17155306
申请日：2021-01-22
Inventor： Seunghyun JANG
Abstract: The linear power regulator includes a source follower configured to determine an output voltage of the linear power regulator based on a reference voltage signal applied from outside, a pass-transistor connected to a source end of the source follower and configured to provide a current to a load of the linear power regulator, a negative feedback loop formed by connecting a drain terminal of the source follower and a gate of the pass-transistor, and a negative feedback coefficient controller disposed between the drain terminal of the source follower and the gate of the pass-transistor, and configured to control a negative feedback coefficient of the negative feedback loop by changing the negative feedback coefficient of the negative feedback loop based on an elapsed time from a point in time at which a power signal is applied to the linear power regulator.
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Patent Agency Ranking
公开(公告)号：US20240213685A1
公开(公告)日：2024-06-27
申请号：US18473854
申请日：2023-09-25
Inventor： Bong Hyuk PARK , Sunwoo KONG , SEUNG HUN WANG , Hui Dong LEE , Seunghyun JANG , Seok Bong HYUN
CPC classification number: H01Q13/08 , H01Q1/2283
Abstract: An antenna system and an apparatus including the same are provided. The antenna system includes at least one antenna module, wherein the antenna module may include a plurality of antennas formed on one surface of a first board, and a beamforming chip formed on one surface of a second board, wherein the plurality of antennas is connected to the beamforming chip through a plurality of microstrip lines and a waveguide.
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公开(公告)号：US20150017932A1
公开(公告)日：2015-01-15
申请号：US14150084
申请日：2014-01-08
Inventor： Seunghyun JANG , Sung Jun LEE , Young Kyun CHO , Bong Hyuk PARK , JAE HO JUNG , Kwangchun LEE
CPC classification number: H04W52/04 , H04W52/241 , H04W52/52
Abstract: A signal amplification apparatus includes a first modulator configured to receive an envelope signal, use a predetermined reference level to separate the received envelope signal into a first period and a second period, digitally modulate a signal of the second period to output the digitally modulated signal to a first output terminal, and output a signal of the first period to a second output terminal. Further, the signal amplification apparatus includes a second modulator configured to mix the digital modulated signal input through the first output terminal with a phase modulated carrier signal; an envelope modulator configured to output the signal of the first period as a power supply signal; and a power amplifier configured to amplify the mixed signal output by the second modulator to output the amplified signal.
Abstract translation: 信号放大装置包括：第一调制器，被配置为接收包络信号，使用预定的参考电平将接收的包络信号分离成第一周期和第二周期，数字地调制第二周期的信号以输出数字调制信号 第一输出端，并将第一周期的信号输出到第二输出端。 此外，信号放大装置包括：第二调制器，被配置为将通过第一输出端子输入的数字调制信号与相位调制载波信号混合; 包络调制器，被配置为输出所述第一周期的信号作为电源信号; 以及功率放大器，被配置为放大由第二调制器输出的混合信号以输出放大的信号。
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公开(公告)号：US20240222862A1
公开(公告)日：2024-07-04
申请号：US18501418
申请日：2023-11-03
Inventor： Sunwoo KONG , Bong Hyuk PARK , SEUNG HUN WANG , HUI DONG LEE , Seunghyun JANG , SEOK BONG HYUN
CPC classification number: H01Q3/36 , H01Q1/48 , H01Q9/0407
Abstract: A beamforming apparatus and a beamforming method using an expandable planar array antenna are provided. The beamforming apparatus that performs the beamforming method includes an array antenna in which an Elevation (EL) antenna group configured to perform beam steering in an elevation angle direction and an Azimuth (AZ) antenna group configured to perform beam steering in an azimuth angle direction are disposed on a same plane, a first chip located on a top surface of the array antenna and configured to control the beam steering in the elevation angle direction by controlling patch antennas included in the EL antenna group, and a second chip located on a bottom surface of the array antenna and configured to control the beam steering in the azimuth angle direction by controlling patch antennas included in the AZ antenna group.
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公开(公告)号：US20240194618A1
公开(公告)日：2024-06-13
申请号：US18349024
申请日：2023-07-07
Inventor： HUI DONG LEE , Sunwoo KONG , Bong Hyuk PARK , SEUNG HUN WANG , Seunghyun JANG , SEOK BONG HYUN
IPC: H01L23/66 , H01L23/00 , H01L23/495 , H01L23/64
CPC classification number: H01L23/66 , H01L23/4952 , H01L23/642 , H01L23/647 , H01L24/48 , H01L2223/6627 , H01L2224/48195
Abstract: A semiconductor package is provided. The semiconductor package includes a semiconductor chip including an integrated circuit (IC) pad configured to output a wireless frequency signal, a lead frame including a package pad configured to receive the wireless frequency signal, a first wire of which one end is connected to the IC pad, a second wire of which one end is connected to the package pad, and a circuit element connected to the first wire and the second wire in parallel or in series. A radio frequency (RF) output impedance of the package pad or an RF output impedance of the IC pad is controlled by a type of the circuit element or a connection relationship between the circuit element, the first wire, and the second wire.
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10.发明公开公开(公告)号：US20230198485A1
公开(公告)日：2023-06-22
申请号：US17964157
申请日：2022-10-12
Inventor： Sunwoo KONG , Bong Hyuk PARK , Hui Dong LEE , Seunghyun JANG , Seok Bong HYUN
Abstract: Disclosed is a bidirectional amplifier. The bidirectional amplifier includes a first matching circuit, a second matching circuit, an amplifier circuit connected between the first matching circuit and the second matching circuit, that amplifies a first input signal received from the first matching circuit to output the amplified first input signal to the second matching circuit, and that amplifies a second input signal received from the second matching circuit to output the amplified first input signal to the first matching circuit, and the first and second matching circuits have a symmetrical structure and operate complementary to each other.
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