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公开(公告)号：US20230018912A1
公开(公告)日：2023-01-19
申请号：US17948385
申请日：2022-09-20
Applicant: KMW INC.
Inventor： Nam Shin PARK , Joung Hoe KIM , Sung Ho JANG
Abstract: The present invention relates to a cavity filter including: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein a part of the terminal portion, positioned between the electrode pad and the RF signal connecting portion, is elastically deformed to absorb assembly tolerance existing in a terminal insertion port. Therefore, the cavity filter can efficiently absorb assembly tolerance which occurs through assembly design, and prevent disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.
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公开(公告)号：US20230223670A1
公开(公告)日：2023-07-13
申请号：US18114228
申请日：2023-02-25
Applicant: KMW INC.
Inventor： Joung Hoe KIM , Sang Yoong KIM
Abstract: The present invention relates to an RF filter assembly for an antenna and, particularly, comprises: a plurality of band pass filters (BPFs); a filter board which is arranged to be stacked on the front surface of a main board and which mediate the coupling of the band pass filters for the front surface of the main board; low pass filters (LPFs) intaglio- or embossed-printed on front surface of the filter board; and an air layer formation pad arranged between the filter board and the band pass filters to form a predetermined air layer between the front surface of the filter board and rear surfaces of the band pass filters, and thus the overall performance of a filter product can be improved by minimizing insertion loss of a filter.
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公开(公告)号：US20210098852A1
公开(公告)日：2021-04-01
申请号：US17118688
申请日：2020-12-11
Applicant: KMW INC.
Inventor： Nam Shin PARK , Joung Hoe KIM , Sung Ho JANG
Abstract: The present disclosure relates to a cavity filter and a connecting structure included therein. The cavity filter includes: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein the terminal portion includes: first side terminal contacted with the electrode pad; and the second side terminal connected to the RF signal connecting portion. Therefore, the cavity filter can efficiently absorb assembly tolerance which occurs through assembly design, and prevents disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.
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公开(公告)号：US20210098849A1
公开(公告)日：2021-04-01
申请号：US17120095
申请日：2020-12-11
Applicant: KMW INC.
Inventor： Nam Shin PARK , Joung Hoe KIM , Sung Ho JANG
Abstract: The present invention relates to a cavity filter and a connecting structure included therein. The cavity filter includes: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein the terminal portion includes: first side terminal contacted with the electrode pad; and the second side terminal connected to the RF signal connecting portion, wherein at least any one of the first side terminal and the second side terminal has a housing space in which the other side terminal is housed, and a part of the at least one side terminal is elastically deformed by an assembly force provided by an assembler, and applies lateral tension to the other side terminal while elastically supporting the other side terminal toward the electrode pad. Therefore, the cavity filter can efficiently absorb assembly tolerance which occurs through assembly design, and prevent disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.
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公开(公告)号：US20240047842A1
公开(公告)日：2024-02-08
申请号：US18381193
申请日：2023-10-18
Applicant: KMW INC.
Inventor： Nam Shin PARK , Joung Hoe KIM , Jung Hee WON , Kwang Nam JEON , Won Jae YOON , Hyung Sun YOON
Abstract: The present invention relates to a switchable filter comprising: a filter unit in which a first filter group for filtering the frequency of a first frequency band is provided on one surface thereof and a second filter group for filtering the frequency of a second frequency band is provided on the other surface thereof on the basis of a center partition wall; and a frequency band switching unit, which moves to be adjacent to or separated from the one surface or the other surface of the filter unit, and thus converts a frequency band into the first frequency band or the second frequency band. Therefore, the deterioration of RF characteristics is prevented and selective conversion between frequency bands is facilitated.
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Patent Agency Ranking
公开(公告)号：US20230085969A1
公开(公告)日：2023-03-23
申请号：US17992916
申请日：2022-11-22
Applicant: KMW INC.
Inventor： Kyo Sung JI , Bae Mook JEONG , Joung Hoe KIM
Abstract: The present invention relates to an antenna device and, particularly, the antenna device comprises: a printed board assembly (hereinafter, referred to as “PBA”) having a plurality of antenna-related components mounted on one surface thereof, and having a plurality of filters mounted on the other surface thereof, an antenna board which is arranged to be stacked on one surface side of the PBA, and which has a plurality of antenna elements mounted on one surface thereof and connected to construct electrical signal lines with the filters in close contact with the other surface thereof, and clamshell units interposed between the other surface of the PBA and one surface of the filters to perform a signal shielding function, wherein the insides of the clamshell units include strip line connectors which absorb the assembly tolerance between the clamshell units while being partially deformed by means of the adhesion of the filters during close-coupling of the filters, and which shield a signal by means of ground surfaces arranged around the strip line connector while constructing the electrical signal lines, and thus the manufacturing cost of the filters is reduced and impedance properties are prevented from being easily disrupted.
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公开(公告)号：US20230052656A1
公开(公告)日：2023-02-16
申请号：US17975604
申请日：2022-10-28
Applicant: KMW INC.
Inventor： Nam Shin PARK , Sung Ho JANG , Kwang Il LEE , Kyoung Hun KO , Joung Hoe KIM , Yong Jin PARK
Abstract: The present invention relates to a filter and a method of manufacturing the same, the filter including an RF connector configured to have a predetermined electrical signal line, a filter body having at least one impedance matching space in which the RF connector is installed, a relevant PCB on which one end of the RF connector is fixedly mounted, the relevant PCB coupled to be in close contact with one side surface of the filter body, and an annular gasket interposed between one side surface of the filter body and the relevant PCB to block a signal leak, in which a concave-convex portion is processed on a surface of one side surface of the filter body to which the annular gasket is attached to increase an attachment area, thereby providing an advantage of improving a bonding force of an attachment portion to which the gasket is attached.
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公开(公告)号：US20210098850A1
公开(公告)日：2021-04-01
申请号：US17118720
申请日：2020-12-11
Applicant: KMW INC.
Inventor： Nam Shin PARK , Joung Hoe KIM , Sung Ho JANG
Abstract: The present invention relates to a cavity filter. The cavity filter includes: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein the terminal portion is divided into a first side terminal contacted with the electrode pad and a second side terminal connected to the RF signal connecting portion, absorbs the assembly tolerance existing in a terminal insertion port, in which the terminal portion is provided, through an elastic member provided between the first side terminal and the second side terminal, and prevents disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.
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公开(公告)号：US20240332766A1
公开(公告)日：2024-10-03
申请号：US18676458
申请日：2024-05-28
Applicant: KMW INC.
Inventor： Nam Shin PARK , Joung Hoe KIM , Sung Ho JANG
CPC classification number: H01P1/045 , H01P1/20309 , H01P1/207 , H01P1/2084 , H01P1/2088 , H01P7/065
Abstract: The present invention relates to a cavity filter. The cavity filter includes: an RF signal connecting portion spaced apart, by a predetermined distance, from an outer member having an electrode pad provided on a surface thereof; and a terminal portion configured to electrically connect the electrode pad of the outer member and the RF signal connecting portion so as to absorb assembly tolerance existing at the predetermined distance and to prevent disconnection of the electric flow between the electrode pad and the RF signal connecting portion, wherein the terminal portion is divided into a first side terminal contacted with the electrode pad and a second side terminal connected to the RF signal connecting portion, absorbs the assembly tolerance existing in a terminal insertion port, in which the terminal portion is provided, through an elastic member provided between the first side terminal and the second side terminal, and prevents disconnection of an electric flow, thereby preventing degradation in performance of an antenna device.
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公开(公告)号：US20230238675A1
公开(公告)日：2023-07-27
申请号：US18114227
申请日：2023-02-25
Applicant: KMW INC.
Inventor： Joung Hoe KIM , Sang Yoong KIM
Abstract: The present invention relates to an RF filter assembly for an antenna. Particularly, the RF filter assembly for an antenna comprises: a main board on which a plurality of electronic components are mounted; a plurality of RF filters which are installed on one surface of the main board; and a filter support member which is disposed between the main board and the plurality of RF filters, is made of a metal material, and separates each of the plurality of RF filters in the direction of the one surface of the main board. Thereby, the present invention provides advantages of preventing the occurrence of cracks in solder cream caused by differences in thermal expansion coefficients between the main board and each RF filter, and also, enabling a more precise RF filter arrangement, and improving product reliability.
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