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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
发明人： Sunwoo KONG , Bong Hyuk PARK , HUI DONG LEE , Seunghyun JANG , SEOK BONG HYUN
摘要： 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：US20180212619A1
公开(公告)日：2018-07-26
申请号：US15868786
申请日：2018-01-11
发明人： Young Kyun CHO , Bong Hyuk PARK
CPC分类号： H03M3/438 , H03H11/1204 , H03H11/126 , H03H11/1291 , H03M3/422
摘要： A delta-sigma modulator may comprise a loop filter for integrating and outputting a difference between an input signal and an analog signal; a quantizer for quantizing and outputting a signal output from the loop filter; and a digital-to-analog converter (DAC) for outputting the analog signal by digital-to-analog converting a signal output from the quantizer. Also, the loop filter may comprise an operational amplifier; and a circuit including at least one capacitor, at least one resistor, and at least one switch which are connected to the operational amplifier. Also, signal transfer characteristics of the loop filter satisfy a third-order transfer function or a second-order transfer function by turning on or off the at least one switch.
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公开(公告)号：US20170207796A1
公开(公告)日：2017-07-20
申请号：US15405628
申请日：2017-01-13
发明人： Young Kyun CHO , Bong Hyuk PARK
CPC分类号： H03M3/454 , H03H11/1204 , H03H11/1291 , H03M3/422 , H03M3/43 , H03M3/452 , H03M3/464
摘要： A third-order loop filter for a delta signal modulator comprises a single operational amplifier, and a resistor-capacitor network including a plurality of capacitors and a plurality of resistors which are connected to the operational amplifier, and satisfy a third-order transfer function.
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4.发明申请APPARATUS AND METHOD FOR ADJUSTING ENVELOPE SIGNAL DELAY IN ENVELOPE-TRACKING POWER AMPLIFIER 有权用于调节信号跟踪功率放大器中的信号延迟的装置和方法公开(公告)号：US20160218679A1
公开(公告)日：2016-07-28
申请号：US14996809
申请日：2016-01-15
发明人： Seung Hyun JANG , Bong Hyuk PARK , Nam Sik RYU , Dong Seung KWON
CPC分类号： H03F1/0222 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2200/451 , H03G3/30 , H03G3/3005
摘要： Provided is an apparatus for adjusting an envelope signal delay in an envelope-tracking power amplifier. The apparatus includes: an envelope signal providing unit configured to provide an envelope signal; a variable negative group delay unit configured to adjust a group delay of the envelope signal received from the envelope signal providing unit and output the adjusted envelope signal; an envelope modulator configured to modulate the envelope signal outputted from the variable negative group delay unit; a group delay difference detecting unit configured to detect a group delay difference between the envelope signal which is outputted from the envelope signal providing unit and the envelope signal which is outputted from the envelope modulator; and a control signal generating unit configured to generate a control signal to control a group delay value of the variable negative group delay unit according to the group delay difference.
摘要翻译： 提供了一种用于调整包络跟踪功率放大器中的包络信号延迟的装置。 该装置包括：包络信号提供单元，被配置为提供包络信号; 可变负组延迟单元，被配置为调整从包络信号提供单元接收的包络信号的组延迟并输出调整的包络信号; 包络调制器，被配置为调制从所述可变负组延迟单元输出的包络信号; 组延迟差检测单元，被配置为检测从包络信号提供单元输出的包络信号与从包络调制器输出的包络信号之间的组延迟差; 以及控制信号生成单元，被配置为根据组延迟差产生控制信号以控制可变负组延迟单元的组延迟值。
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公开(公告)号：US20240223408A1
公开(公告)日：2024-07-04
申请号：US18395956
申请日：2023-12-26
发明人： Seung Hun WANG , Sun Woo KONG , Bong Hyuk PARK , Hui Dong LEE , Seung Hyun JANG , Seok Bong HYUN
CPC分类号： H04L25/0272 , H03M3/34 , H04B3/02
摘要： A reconfigurable circuit for differential network includes: first circuit which is a two-port differential circuit; first cross-coupled switch circuit connected to first port on one side of the first circuit in parallel; and second circuit connected to second port on the other side of the first cross-coupled switch circuit in series. The first cross-coupled switch circuit includes: first-series switch disposed between and connected to first terminal of the first port and first terminal of the second port in series; second-series switch disposed between and connected to second terminal of the first port and second terminal of the second port in series; first cross-coupled element disposed between and connected to the first terminal of the first port and the second terminal of the second port; and second cross-coupled element disposed between and connected to the second terminal of the first port and the first terminal of the second port.
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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
发明人： Bong Hyuk PARK , Sunwoo KONG , Hui Dong LEE , Seunghyun JANG , Seok Bong HYUN
CPC分类号： H01Q3/28 , H01Q21/062 , H01Q9/16
摘要： 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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公开(公告)号：US20180167048A1
公开(公告)日：2018-06-14
申请号：US15835148
申请日：2017-12-07
发明人： Sun Woo KONG , Cheol Ho KIM , Bong Hyuk PARK , Hui Dong LEE
CPC分类号： H03H7/40 , H01F27/29 , H03F1/565 , H03F3/19 , H03F3/193 , H03F2200/222 , H03F2200/492 , H03F2200/534 , H03F2200/541 , H03H7/09 , H03H7/38 , H03H11/32 , H04M1/76
摘要： A matching circuit in a communication apparatus may comprise a first inductor disposed at a primary side of a transformer; a second inductor disposed at a secondary side of the transformer; and an impedance element connected to the first inductor and the second inductor. Also, a first terminal of the first inductor may be connected to an input terminal of the transformer, a second terminal of the first inductor may be connected to a common node connected to a ground, a first terminal of the second inductor may be connected to an output terminal of the transformer, a second terminal of the second inductor may be connected to the common node, a first terminal of the impedance element may be connected to the common node, and a second terminal of the impedance element may be connected to the ground.
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8.发明申请公开(公告)号：US20160218785A1
公开(公告)日：2016-07-28
申请号：US15006283
申请日：2016-01-26
发明人： Young Kyun CHO , Bong Hyuk PARK , Jung Hoon OH , Jung Nam LEE , Gweon Do JO
摘要： A smart antenna system according to an exemplary embodiment of the present invention including a beam forming antenna which includes an active antenna and a plurality of parasitic antennas, the system including: a reactance load which is connected to the parasitic antenna; a transceiver which transmits and receives a signal to the beam forming antenna; and an antenna adjusting block which tracks a signal source in real time using a plurality of beam patterns having the largest signal size and forms a beam in a direction having the largest signal size.
摘要翻译： 根据本发明的示例性实施例的智能天线系统，包括：波束形成天线，其包括有源天线和多个寄生天线，所述系统包括：连接到所述寄生天线的电抗负载; 发送和接收信号到波束形成天线的收发器; 以及天线调整块，其使用具有最大信号尺寸的多个波束图案实时跟踪信号源，并且在具有最大信号大小的方向上形成波束。
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9.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
发明人： Sung Jun LEE , Young Kyun CHO , Seunghyun JANG , Bong Hyuk PARK , JAE HO JUNG , Kwangchun LEE
IPC分类号： H04L7/00
CPC分类号： H04L7/0016 , H04L27/366 , H04L27/02 , H04L27/361
摘要： 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.
摘要翻译： 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：US20240213685A1
公开(公告)日：2024-06-27
申请号：US18473854
申请日：2023-09-25
发明人： Bong Hyuk PARK , Sunwoo KONG , SEUNG HUN WANG , Hui Dong LEE , Seunghyun JANG , Seok Bong HYUN
CPC分类号： H01Q13/08 , H01Q1/2283
摘要： 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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