Patents by Inventor Joung-Hoe Kim
Joung-Hoe Kim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12148990Abstract: The present invention relates to an antenna device, and especially, comprises: a printed board assembly (PBA hereinafter) which has a plurality of antenna-related components mounted to one surface, and has a plurality of filters mounted to the other surface; and an antenna board which is stacked and disposed on the one surface side of the PBA, has a plurality of antenna elements mounted to one surface, and is connected to the filters tightly adhering to the other surface, so as to establish an electrical signal line with the filters, wherein the filters are spaced apart from the other surface of the PBA and have clamshell parts integrally formed so as to prevent a signal leakage from the electrical signal line, and thus an advantage is provided of enabling the improvement of the overall heat dissipation performance and filter performance of the filters.Type: GrantFiled: November 25, 2022Date of Patent: November 19, 2024Assignee: KMW INC.Inventors: Kyo Sung Ji, Bae Mook Jeong, Joung Hoe Kim
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Patent number: 12142835Abstract: 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 surfaType: GrantFiled: November 22, 2022Date of Patent: November 12, 2024Assignee: KMW INC.Inventors: Kyo Sung Ji, Bae Mook Jeong, Joung Hoe Kim
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Publication number: 20240332766Abstract: The present invention relates to a cavity filter.Type: ApplicationFiled: May 28, 2024Publication date: October 3, 2024Applicant: KMW INC.Inventors: Nam Shin PARK, Joung Hoe KIM, Sung Ho JANG
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Patent number: 12068515Abstract: The present invention relates to a cavity filter and a connecting structure included therein.Type: GrantFiled: December 11, 2020Date of Patent: August 20, 2024Assignee: KMW INC.Inventors: Nam Shin Park, Joung Hoe Kim, Sung Ho Jang
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Patent number: 12027740Abstract: The present invention relates to a cavity filter.Type: GrantFiled: December 11, 2020Date of Patent: July 2, 2024Assignee: KMW INC.Inventors: Nam Shin Park, Joung Hoe Kim, Sung Ho Jang
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Patent number: 11967749Abstract: 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: a first side terminal contacted with the electrode pad; and a second side terminal having a housing space in which a part of the first side terminal is housed, and connected to the RF signal connecting portion, wherein the first side terminal is provided as an elastic deformable body whose part is radially widened or narrowed against an assembly force provided by an assembler.Type: GrantFiled: October 27, 2022Date of Patent: April 23, 2024Assignee: KMW INC.Inventors: Nam Shin Park, Joung Hoe Kim, Sung Ho Jang
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Publication number: 20240047842Abstract: 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.Type: ApplicationFiled: October 18, 2023Publication date: February 8, 2024Applicant: KMW INC.Inventors: Nam Shin PARK, Joung Hoe KIM, Jung Hee WON, Kwang Nam JEON, Won Jae YOON, Hyung Sun YOON
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Patent number: 11876273Abstract: 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.Type: GrantFiled: December 11, 2020Date of Patent: January 16, 2024Assignee: KMW INC.Inventors: Nam Shin Park, Joung Hoe Kim, Sung Ho Jang
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Patent number: 11824246Abstract: A cavity filter comprising: a resonance element including a coupling block; a first case and a second case housing the resonance element; a terminal unit penetrating the first case to be connected to an electrode pad of a PCB provided on the outside of the first case and the other end thereof is electrically connected to the coupling block of the resonance element; and an assembly unit provided on either one side or both sides of the case, and having a terminal insertion hole in which the terminal unit is insertedly provided, wherein the assembly unit is formed to protrude to the outside from a lower surface of the first case. the assembly unit provide a height between the first casing and PCB so the cavity filter avoid interference with the devices mounted on the PCB.Type: GrantFiled: July 31, 2020Date of Patent: November 21, 2023Assignee: KMW INC.Inventors: Duk Yong Kim, Sung Ho Jang, Joung Hoe Kim
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Patent number: 11817643Abstract: 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.Type: GrantFiled: September 20, 2022Date of Patent: November 14, 2023Assignee: KMW INC.Inventors: Nam Shin Park, Joung Hoe Kim, Sung Ho Jang
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Publication number: 20230246337Abstract: The present disclosure relates to a cavity filter assembly and, particularly, comprises: a filter body having a cavity, which is a predetermined space therein; and at least one resonance bar having a front end surface that forms a stamped part, which is a protruding surface protruding from the bottom surface of the filter body toward the cavity so as to be parallel to the bottom surface of the filter body in the cavity, for frequency tuning in the cavity, and having a tuning correction hole that penetrates the stamped part, wherein the resonance bar allows frequency tuning to be performed in the cavity through stamping on the outer surface of the stamped part from the outside of the filter body, and the tuned frequency can be corrected through the tuning correction hole, and thus the advantages of reducing the total weight and component costs of an antenna device and improving product productivity are provided.Type: ApplicationFiled: April 12, 2023Publication date: August 3, 2023Applicant: KMW INC.Inventors: Joung Hoe KIM, Kwang Nam JEON, Jung Hee WON, Jong Min PARK, Haeng Seok CHOI, Seong Cheon JO, Jong Youn JUNG
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Publication number: 20230238675Abstract: 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.Type: ApplicationFiled: February 25, 2023Publication date: July 27, 2023Applicant: KMW INC.Inventors: Joung Hoe KIM, Sang Yoong KIM
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Publication number: 20230223702Abstract: The present invention relates to a cavity filter for an antenna, specifically to a cavity filter comprising: a filter body having a plurality of cavities which are open at one side and are divided by a partition wall; a resonance bar installed at each of the plurality of cavities; a resonance bar boss into which a part of the resonance bar is inserted and which is provided such that the resonance bar is installed at the cavity; and a tolerance management stopper part which is disposed between an inner peripheral surface of the resonance bar boss and an outer peripheral surface of the resonance bar to perform stop-and-moving functions in an insertion direction of the resonance bar in designing the tolerance of the cavity, thereby providing the advantage of improving a production yield of an entire product.Type: ApplicationFiled: February 26, 2023Publication date: July 13, 2023Applicant: KMW INC.Inventors: Joung Hoe KIM, Won Tai KIM
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Publication number: 20230223670Abstract: 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.Type: ApplicationFiled: February 25, 2023Publication date: July 13, 2023Applicant: KMW INC.Inventors: Joung Hoe KIM, Sang Yoong KIM
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Patent number: 11677195Abstract: The present disclosure relates to a coaxial connector, and particularly, a coaxial connector including a fixing module which is connected to a first PCB, and a contact module which is coupled movably to the fixing module, and provided to be contactable to a second PCB facing the first panel, in which the contact module includes a contact body which is made of a conductive material, and has a hollow formed therein, a contact pin which is made of a conductive material, and disposed to penetrate the hollow of the contact body, and a contact insulator which is disposed in the hollow of the contact body to insulate the contact pin and the contact body by partitioning the contact pin and the contact body, and the contact module is configured so that the contact body, the contact pin, and the contact insulator are integrally formed to be assembled to the fixing module by a singular process, thereby providing the advantages which may reduce the cost of a product, and improve the quality of the product by improving aType: GrantFiled: December 14, 2021Date of Patent: June 13, 2023Assignee: KMW INC.Inventors: Nam Shin Park, Joung Hoe Kim, Jin Hoon Lim, Min Hee Lee, Ho Jin Hwang
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Publication number: 20230087435Abstract: The present invention relates to an antenna device, and especially, comprises: a printed board assembly (PBA hereinafter) which has a plurality of antenna-related components mounted to one surface, and has a plurality of filters mounted to the other surface; and an antenna board which is stacked and disposed on the one surface side of the PBA, has a plurality of antenna elements mounted to one surface, and is connected to the filters tightly adhering to the other surface, so as to establish an electrical signal line with the filters, wherein the filters are spaced apart from the other surface of the PBA and have clamshell parts integrally formed so as to prevent a signal leakage from the electrical signal line, and thus an advantage is provided of enabling the improvement of the overall heat dissipation performance and filter performance of the filters.Type: ApplicationFiled: November 25, 2022Publication date: March 23, 2023Applicant: KMW INC.Inventors: Kyo Sung JI, Bae Mook JEONG, Joung Hoe KIM
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Publication number: 20230085969Abstract: 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 surfaType: ApplicationFiled: November 22, 2022Publication date: March 23, 2023Applicant: KMW INC.Inventors: Kyo Sung JI, Bae Mook JEONG, Joung Hoe KIM
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Publication number: 20230080727Abstract: An RF connector is disclosed herein.Type: ApplicationFiled: November 23, 2022Publication date: March 16, 2023Applicant: KMW INC.Inventors: Kyo Sung JI, Chi Back RYU, Bae Mook JEONG, Joung-hoe KIM
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Publication number: 20230045912Abstract: 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: a first side terminal contacted with the electrode pad; and a second side terminal having a housing space in which a part of the first side terminal is housed, and connected to the RF signal connecting portion, wherein the first side terminal is provided as an elastic deformable body whose part is radially widened or narrowed against an assembly force provided by an assembler.Type: ApplicationFiled: October 27, 2022Publication date: February 16, 2023Applicant: KMW INC.Inventors: Nam Shin PARK, Joung Hoe KIM, Sung Ho JANG
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Publication number: 20230052656Abstract: 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.Type: ApplicationFiled: October 28, 2022Publication date: February 16, 2023Applicant: KMW INC.Inventors: Nam Shin PARK, Sung Ho JANG, Kwang Il LEE, Kyoung Hun KO, Joung Hoe KIM, Yong Jin PARK