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公开(公告)号：US10116027B2
公开(公告)日：2018-10-30
申请号：US15175912
申请日：2016-06-07
Applicant: KMW INC.
Inventor： Nam-Shin Park , Joung-Hoe Kim , Don-Yong Lee , Kang-Hui Suh , Jong-Youn Jung , Sang-Hwan Cho , Dong-Cheon Kim , Sang-Yoong Kim , Yong-Jin Park , Oh-Kwon Kim
Abstract: An automatic RF filter tuning system and a method for manufacturing a filter using the same are disclosed. An RF filter tuning system for tuning an RF filter that includes a plurality of cavities having resonance elements and a cover having tuning areas that are positioned correspondingly to the resonance elements, includes a measuring unit configured to measure resonance characteristics of the cavity of the RF filter, a control unit configured to calculate a tuning value of the RF filter based on the resonance characteristics, and a tuning unit configured to tune the RF filter based on the tuning value calculated by the control unit. The tuning unit includes a striking unit configured to strike the tuning area of the cover of the RF filter, thereby adjusting the resonance value and tuning the RF filter.
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公开(公告)号：US10109906B2
公开(公告)日：2018-10-23
申请号：US15490930
申请日：2017-04-19
Applicant: KMW INC.
Inventor： Nam-Shin Park
Abstract: The present invention relates to a multimode resonator comprising: a housing provided with a cavity substantially corresponding to one accommodation space; a plurality of resonance arms arranged at preset intervals from each other in the cavity and generating resonance signals by complex mutual coupling; and a plurality of resonance legs for respectively supporting the plurality of resonance arms.
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公开(公告)号：US20170207835A1
公开(公告)日：2017-07-20
申请号：US15477611
申请日：2017-04-03
Applicant: KMW INC.
Inventor： Young-Chan Moon , Nam-Shin Park , Chang-Seob Choi , In-Ho Na
IPC: H04B7/06 , H04L27/233 , H04B1/00 , H04B7/024 , H04B7/0413 , H04B7/155 , H04B7/026
CPC classification number: H04B7/06 , H04B1/0035 , H04B7/024 , H04B7/026 , H04B7/0413 , H04B7/155 , H04L27/2334
Abstract: A base station apparatus of mobile communication system is provided, including an antenna system including first antenna for transceiving signals for a first path among MIMO paths, and a second antenna for transceiving signals for a second path among the MIMO paths, a first duplexer including transmission filter for processing the transmitted signal of first path and reception filter for processing the received signal of second path, a second duplexer including reception filter for processing the received signal of first path and transmission filter for processing the transmitted signal of second path, and a path change unit for providing the transmitted signal provided from the first duplexer to the first antenna and the received signal provided from the first antenna to the second duplexer and to provide the transmitted signal from the second duplexer to the second antenna and the received signal from the second antenna to the first duplexer.
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公开(公告)号：US09564871B2
公开(公告)日：2017-02-07
申请号：US14277449
申请日：2014-05-14
Applicant: KMW INC.
Inventor： Duk Yong Kim , Nam-Shin Park
CPC classification number: H03H7/46 , H01P1/20 , H01P1/203 , H03H7/0138 , H03H7/48 , H03H11/36 , H04B1/58
Abstract: A Radio Frequency (RF) filter configured by combining a hybrid coupler with a general filter, for having different characteristics from original characteristics of a general filter is provided, in which a coupler receives an input signal through a first port, divides the input signal, outputs the divided signals through second and third ports, combines signals received through the second and third ports according to phases of the signals, and outputs the combined signal through the first port or as an output signal of the RF filter through a fourth port, and a first filter unit has a first port connected to the second port of the coupler and a second port connected to the third port of the coupler, for having a predetermined frequency filtering characteristic.
Abstract translation: 提供了通过将混合耦合器与通用滤波器组合的用于具有与通用滤波器的原始特性不同的特性的射频（RF）滤波器，其中耦合器通过第一端口接收输入信号，分频输入信号， 通过第二和第三端口输出划分的信号，根据信号的相位组合通过第二和第三端口接收的信号，并通过第一端口或通过第四端口输出组合信号作为RF滤波器的输出信号，以及 第一滤波器单元具有连接到耦合器的第二端口的第一端口和连接到耦合器的第三端口的第二端口，用于具有预定的频率滤波特性。
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公开(公告)号：US10601102B2
公开(公告)日：2020-03-24
申请号：US16425968
申请日：2019-05-30
Applicant: KMW INC.
Inventor： Nam-Shin Park
Abstract: A multi-mode resonator includes: a housing having a cavity therein; and a plurality of resonance ribs which are arranged radially around a center of the cavity with a predetermined interval therebetween. Each of the plurality of resonance ribs includes a body having a lower end and an upper end. The lower end of each of the plurality of resonance ribs is fixed to a bottom surface of the housing, and the body of the each of the plurality of resonance ribs is bent so that the upper end of each of the plurality of resonance ribs points to the center of the cavity.
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Patent Agency Ranking
公开(公告)号：US10298195B2
公开(公告)日：2019-05-21
申请号：US15704014
申请日：2017-09-14
Applicant: KMW INC.
Inventor： Nam-Shin Park
Abstract: The present invention relates to a radio frequency filter employing a notch structure, wherein the notch structure is a dual notch structure which comprises: a C notch structure formed in a predetermined region at a partition between two cavities to be cross-coupled; and an L notch structure formed together with the C notch structure in a predetermined region at a partition between two cavities.
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公开(公告)号：US09985330B2
公开(公告)日：2018-05-29
申请号：US15072898
申请日：2016-03-17
Applicant: KMW Inc.
Inventor： Nam-Shin Park , Joung-Hoe Kim
Abstract: A radio frequency filter with a cavity structure is provided. The radio frequency filter includes a housing having an inner hollow portion to have a cavity and open from one side of the housing, a cover sealing the open side of the housing, and a resonant element disposed inside the hollow housing. A through hole is formed at a part of the cover, corresponding to the resonant element, and a tuning element is installed covering the through hole, for frequency tuning. The tuning element is formed of a material having a different thermal expansion coefficient from a thermal expansion coefficient of a material of the cover.
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公开(公告)号：US20180006623A1
公开(公告)日：2018-01-04
申请号：US15704014
申请日：2017-09-14
Applicant: KMW INC.
Inventor： Nam-Shin Park
CPC classification number: H03H7/0115 , H01P1/2053 , H01P1/2084
Abstract: The present invention relates to a radio frequency filter employing a notch structure, wherein the notch structure is a dual notch structure which comprises: a C notch structure formed in a predetermined region at a partition between two cavities to be cross-coupled; and an L notch structure formed together with the C notch structure in a predetermined region at a partition between two cavities.
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公开(公告)号：US20150380793A1
公开(公告)日：2015-12-31
申请号：US14847629
申请日：2015-09-08
Applicant: KMW Inc.
Inventor： Nam-Shin Park
CPC classification number: H01P1/2002 , H01P1/2136 , H01P7/10
Abstract: The present invention relates to a radio frequency filter comprising: a first filter unit for filtering a signal in a first frequency band, which is a basic frequency band; a second filter unit for filtering a signal in a second frequency band, which is an additional frequency band in addition to the basic frequency band; and a switching unit having a structure in which at least one resonance terminal among one or more resonance terminals constituting the second filter unit is connected to or blocked from a ground terminal so as to eliminate or maintain the resonance function of the relevant resonance terminal(s).
Abstract translation: 射频滤波器技术领域本发明涉及一种射频滤波器，包括：第一滤波器单元，用于对作为基本频带的第一频带中的信号进行滤波; 第二滤波器单元，用于对除了基本频带之外的附加频带的第二频带中的信号进行滤波; 以及具有这样的结构的开关单元，其中构成第二滤波器单元的一个或多个谐振端子中的至少一个谐振端子与接地端子连接或阻塞，以消除或维持相关谐振端子的谐振功能 ）。
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公开(公告)号：US20140247098A1
公开(公告)日：2014-09-04
申请号：US14277449
申请日：2014-05-14
Applicant: KMW INC.
Inventor： Duk Yong Kim , Nam-Shin Park
IPC: H01P1/20
CPC classification number: H03H7/46 , H01P1/20 , H01P1/203 , H03H7/0138 , H03H7/48 , H03H11/36 , H04B1/58
Abstract: A Radio Frequency (RF) filter configured by combining a hybrid coupler with a general filter, for having different characteristics from original characteristics of a general filter is provided, in which a coupler receives an input signal through a first port, divides the input signal, outputs the divided signals through second and third ports, combines signals received through the second and third ports according to phases of the signals, and outputs the combined signal through the first port or as an output signal of the RF filter through a fourth port, and a first filter unit has a first port connected to the second port of the coupler and a second port connected to the third port of the coupler, for having a predetermined frequency filtering characteristic.
Abstract translation: 提供了通过将混合耦合器与通用滤波器组合的用于具有与通用滤波器的原始特性不同的特性的射频（RF）滤波器，其中耦合器通过第一端口接收输入信号，分频输入信号， 通过第二和第三端口输出划分的信号，根据信号的相位组合通过第二和第三端口接收的信号，并通过第一端口或通过第四端口输出组合信号作为RF滤波器的输出信号，以及 第一滤波器单元具有连接到耦合器的第二端口的第一端口和连接到耦合器的第三端口的第二端口，用于具有预定的频率滤波特性。
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