Patents Assigned to KMW Inc.
  • Patent number: 11522260
    Abstract: The present invention relates to a cavity filter and, in particular, provides an advantage of preventing performance deterioration of an antenna device by efficiently absorbing an assembly tolerance which may occur due to assembly design and preventing an interruption of an electrical flow, by comprising: an RF signal connecting part provided to be spaced apart at a predetermined distance from an external member having an electrode pad formed on one surface thereof; a terminal part which electrically connects the electrode pad of the external member to the RF signal connecting part, while absorbing an assembly tolerance existing within the predetermined distance and simultaneously preventing an interruption of an electrical flow between the electrode pad and the RF signal connecting part; a dielectric body which is inserted into a terminal insertion hole so as to surround the outside of the terminal part; and an elastic member which has a portion of the edge supported by the dielectric body and which elastica
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: December 6, 2022
    Assignee: KMW INC.
    Inventors: Joung Hoe Kim, Sang Yoong Kim
  • Publication number: 20220384946
    Abstract: Provided is an antenna device capable of ensuring an installation space for components related to an antenna and eliminating a dead zone of a signal transmitted or received by the antenna by tilting an antenna unit.
    Type: Application
    Filed: August 5, 2022
    Publication date: December 1, 2022
    Applicant: KMW INC.
    Inventors: In Ho KIM, Seong Man KANG, Hyoung Seok YANG, Yong Hee HAN, Young Ji HONG, Dae Myung PARK
  • Publication number: 20220377941
    Abstract: Provided is a heat dissipating apparatus for electronic elements which has the minimum size but has improved heat dissipating performance. To this end, the heat dissipating apparatus for electronic elements, according to the present invention, comprises: a heat dissipating housing having an internal space; a shield case formed of a thermally conductive material, wherein the shield case is disposed in the heat dissipating housing and partitions the internal space into a first chamber which is a vacuum space to be filled with a refrigerant and a second chamber which is a non-vacuum space; and a printed circuit board which is disposed in the shield case and has a heat dissipating element. The shield case evaporates the refrigerant by using sensible heat transferred from the heat dissipating element to the shield case and latent heat transferred from the shield case to the first chamber.
    Type: Application
    Filed: August 5, 2022
    Publication date: November 24, 2022
    Applicant: KMW INC.
    Inventors: Kyo Sung JI, Bae Mook JEONG, In Hwa CHOI
  • Publication number: 20220359985
    Abstract: Disclosed is a frequency-division duplexing (FDD) type antenna device for implementing spatial-polarization separation of beams using a quad-polarized antenna module array. There is provided an antenna device including first radiating elements, second radiating elements, third radiating elements, and fourth radiating elements, a filter unit including first, second, third, and fourth filters that filter signals of first, second, third, and fourth signal paths, respectively, and a phase setting module configured to set phases of the filtered signals so that a first beam and a second beam radiated through the first and second radiating elements and the third and fourth radiating elements, respectively, are separated in space, wherein the first beam and the second beam have different polarization directions.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 10, 2022
    Applicant: KMW INC.
    Inventors: Young Chan MOON, Sung Hwan SO, Oh Seog CHOI
  • Patent number: 11495870
    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: 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: Grant
    Filed: December 11, 2020
    Date of Patent: November 8, 2022
    Assignee: KMW INC.
    Inventors: Nam Shin Park, Joung Hoe Kim, Sung Ho Jang
  • Publication number: 20220354018
    Abstract: Provided is a cooling apparatus for an electronic element having improved heat dissipation performance while minimizing the size.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 3, 2022
    Applicant: KMW INC.
    Inventors: Duk Yong KIM, Jin Soo YEO, Kyu Chul CHOI, In Hwa CHOI, Youn Jun CHO, Jeong Hyun CHOI, Jae Hyun PARK
  • Publication number: 20220344798
    Abstract: A base station antenna device includes an antenna module having a separation space spaced a predetermined distance forward from a support pole, a remote radio head (RRH) provided on the rear surface of the antenna module such that the RRH is slidably assembled in a detachable manner in a horizontal direction from a lateral side of the separation space, and an adapter having a push block provided on a lower end portion of the RRH so as to mediate the electrical signal connection and disconnection between the antenna module and the RRH by means of a pushing operation in the longitudinal direction.
    Type: Application
    Filed: July 8, 2022
    Publication date: October 27, 2022
    Applicant: KMW INC.
    Inventors: Dae Myung PARK, In Ho KIM, Hyoung Seok YANG, Seong Man KANG
  • Patent number: 11482803
    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.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: October 25, 2022
    Assignee: KMW INC.
    Inventors: Nam Shin Park, Joung Hoe Kim, Sung Ho Jang
  • Publication number: 20220328949
    Abstract: The present invention relates to a clamping device for a base station antenna and, more particularly, to a clamping device for a base station antenna, comprising: a guide arm unit which is arranged to extend horizontally to a side, so as to be perpendicular to a support pole arranged vertically; and a tilting unit which is arranged in the guide arm unit and adjusts the tilting angle with respect to the support pole by moving, based on a lower end portion of an antenna module having a fixed hinge position, an upper end portion of the antenna module in the horizontal direction in the guide arm unit. Thus, an advantage of improving the convenience of installation work and reliability of a product can be provided.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 13, 2022
    Applicant: KMW INC.
    Inventors: Yong Hee HAN, In Ho KIM, Hyoung Seok YANG, Seong Man KANG, Dae Myung PARK
  • Publication number: 20220285820
    Abstract: The present invention relates to a cooling device for an antenna apparatus. Particularly, the cooling device comprises a heat-dissipating cover which has an inner surface exposed to a thermal space and an outer surface exposed to the outside where outside air flows, and multiple wave heat-dissipating fins which are disposed in multiple rows on the outer surface of the heat-dissipating cover so as to be thermally conductive, and form curved surfaces that are continuous from the outer surface of the heat-dissipating cover to a discretionary height, in which the horizontal cross-sections at the discretionary height have straight-line shapes in which same are rotated by a predetermined angle in any one direction from the horizontal cross-sections on the outer surface of the heat-dissipating cover. Therefore, the present invention provides the advantage of enhancing heat-dissipating performance.
    Type: Application
    Filed: May 25, 2022
    Publication date: September 8, 2022
    Applicant: KMW INC.
    Inventors: Duk Yong KIM, Jin Soo YEO
  • Patent number: 11437713
    Abstract: An antenna assembly including an antenna reflector steering mechanism is disclosed. A reflector steering structure for adjusting the horizontal azimuth of a reflector includes a drive motor disposed on the rear surface of the reflector, a planet gear rotated by the drive motor, and a sectorial rack gear engaged with the planet gear and fixed to a support shaft, thereby achieving a compact design of an entire antenna structure. Further, by applying a structure with enhanced electrical insulation to rolling and slide contact portions of the drive unit and a portion undergoing change in contact pressure, radio performance of the antenna system may be prevented from changing according to steering of the reflector.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: September 6, 2022
    Assignee: KMW INC.
    Inventors: In-ho Kim, Hyoung-seok Yang, Seong-man Kang
  • Patent number: 11437702
    Abstract: An antenna mounting structure is disclosed. According to an embodiment of the present invention, provided is an antenna mounting structure comprising: a parapet mount part; a parapet contact part vertically connected to one end of the parapet mount part; a mount extension part vertically connected to the other end of the parapet mount part, disposed parallel to the parapet contact part, and is connected and fixed to an inner surface of a parapet wall by means of a first connecting means; and an antenna coupling part adjacently disposed to the parapet contact part and configured to be coupled with an antenna.
    Type: Grant
    Filed: January 10, 2021
    Date of Patent: September 6, 2022
    Assignee: KMW INC.
    Inventors: Yong Hee Han, Seong-man Kang, In Ho Kim
  • Publication number: 20220271411
    Abstract: The present invention relates to a dielectric ceramic filter including a dielectric block filled with a ceramic material and having an outer surface surrounded by a metal component, a resonance part provided in the dielectric block, having a space having a circular horizontal cross-section, and separated from the dielectric block by a metal film, and a tuning cover coupled to the dielectric block, configured to cover one side of the resonance part, and positioned at a portion corresponding to the resonance part, the tuning cover being configured to tune a frequency of the resonance part by being deformed in shape corresponding to a space of the resonance part, thereby increasing a production yield and implementing a high Q value when the volume remains the same.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 25, 2022
    Applicant: KMW INC.
    Inventors: Joung Hoe KIM, Sang Yoong KIM
  • Publication number: 20220238982
    Abstract: The present invention relates to an antenna clamping device including an antenna clamping unit having a tip portion on which an antenna device is mounted, the antenna clamping unit being configured to perform at least any one of a tilting rotation and a rotating rotation to set directionality of the antenna device and having a rear end inserted and fixed into an opened upper end of the support pole, an insertion-type clamping unit disposed inside the opened upper end of the support pole and configured to mediate the fixed insertion of the antenna clamping unit, the insertion-type clamping unit being pressed and fixed to an inner peripheral surface of the support pole, and a support bracket unit fixedly disposed on an outer peripheral surface of the support pole and configured to fixedly support a lower end of the antenna clamping unit, thereby providing an advantage of improving workability for an onsite installer.
    Type: Application
    Filed: April 8, 2022
    Publication date: July 28, 2022
    Applicant: KMW INC.
    Inventors: In Ho KIM, Yong Hee HAN
  • Patent number: 11398665
    Abstract: The present disclosure relates to a heat-radiating mechanism for an antenna device, and particularly, includes: a plurality of communication elements generating predetermined heat upon electrical operation, a heat-radiating combined case having the plurality of communication elements accommodated in one surface thereof and a plurality of heat-radiating ribs integrally formed on the other surface thereof, and an antenna board mounted with the plurality of communication elements on one surface of the heat-radiating combined case, in which the plurality of heat-radiating ribs are formed such that the rising airflow formed by being heat-radiated from the relatively lower portion of the heat-radiating combined case is exhausted to be inclined upward to the left and right outsides of the heat-radiating combined case in the width direction from the relatively upper position, thereby improving the heat-radiating performance of the antenna device.
    Type: Grant
    Filed: November 28, 2020
    Date of Patent: July 26, 2022
    Assignee: KMW, INC.
    Inventors: Chang Woo Yoo, Min Sik Park, Jun Woo Yang
  • Publication number: 20220231412
    Abstract: An antenna device is disclosed for implementing spatial-polarization separation of beams using a quad-polarized antenna module array. The antenna device including a quad-polarized antenna module array including first and second quad-polarized antenna modules in which signal paths of radiating elements having the same polarization direction are coupled, and configured to radiate first and second beams having different polarizations, and a polarization/separation beamforming module configured to set phases between signals to be different from each other so that the first beam and the second beam are spatially separated.
    Type: Application
    Filed: April 6, 2022
    Publication date: July 21, 2022
    Applicant: KMW INC.
    Inventors: Duk Yong KIM, Young Chan MOON, Sung Hwan SO, In Ho KIM, Oh Seog CHOI
  • Publication number: 20220224426
    Abstract: The present invention relates to an apparatus and method for measuring signal quality of an antenna.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Applicant: KMW INC.
    Inventors: Duk Yong KIM, Min Seon YUN
  • Patent number: 11380987
    Abstract: A base station apparatus of an antenna-integrated type for use in a mobile communication network, includes an enclosure configured to have electric and electronic devices for processing signals in receipt and to form at least a part of an exterior of the base station, and an antenna configured to be installed so as to be tiltable on one surface of the enclosure, to have an outer contour defined by a radome, to include at least one radiating element for transmitting and receiving a radio signal, and an enclosure fixing device configured to fixedly mount the enclosure to an external support, and an antenna fixing apparatus configured to fixedly install the antenna on the enclosure so that the antenna is adjustably tilted with respect to the enclosure.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: July 5, 2022
    Assignee: KMW INC.
    Inventors: In-Ho Kim, Oh-Seog Choi, Hee Kim
  • Patent number: D966240
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: October 11, 2022
    Assignee: KMW INC.
    Inventors: Duk Yong Kim, Kyu Chul Choi, In Hwa Choi, Youn Jun Cho, Jae Hyun Park, Kyo Sung Ji, Hye Yeon Kim, Chi Back Ryu, Jeong Hyun Choi
  • Patent number: D966241
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: October 11, 2022
    Assignee: KMW INC.
    Inventors: Duk Yong Kim, Kyu Chul Choi, In Hwa Choi, Youn Jun Cho, Jae Hyun Park, Kyo Sung Ji, Hye Yeon Kim, Chi Back Ryu, Jeong Hyun Choi