Patents by Inventor Oh-Seog CHOI
Oh-Seog CHOI 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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Publication number: 20220231412Abstract: 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: ApplicationFiled: April 6, 2022Publication date: July 21, 2022Applicant: KMW INC.Inventors: Duk Yong KIM, Young Chan MOON, Sung Hwan SO, In Ho KIM, Oh Seog CHOI
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Patent number: 11380987Abstract: 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: GrantFiled: December 15, 2020Date of Patent: July 5, 2022Assignee: KMW INC.Inventors: In-Ho Kim, Oh-Seog Choi, Hee Kim
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Publication number: 20220200148Abstract: A quad-polarized antenna module is provided for implementing temporal-polarization separation.Type: ApplicationFiled: March 13, 2022Publication date: June 23, 2022Applicant: KMW INC.Inventors: Duk Yong KIM, Young Chan MOON, Sung Hwan SO, Oh Seog CHOI
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Patent number: 11322836Abstract: The present disclosure provides a shield wall for shielding multiple individual antenna modules of a massive MIMO antenna from each other. A shield wall according to at least one embodiment of the present disclosure is formed by a plurality of staple-shaped unit partitions arrayed longitudinally of the shield wall, wherein the unit partitions are designed to have optimal widths and heights according to the frequency band in use, and are arranged at a predetermined interval or less with reference to the frequency band in use, thereby providing an antenna structure which satisfies both the X-POL isolation and CO-POL isolation characteristics and can be easily fabricated in a compact, lightweight design.Type: GrantFiled: July 9, 2020Date of Patent: May 3, 2022Assignee: KMW INC.Inventors: Inho Kim, Oh-seog Choi, Hyoung-seok Yang, Jeong Uk Park, Jin Suk Seo
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Patent number: 11289805Abstract: The preset invention relates to a dual polarized antenna and an antenna array and, more particularly, to a dual polarized antenna comprising: a top portion having a radiation patch; a bottom portion forming a probe; and side portions formed along the outer peripheral edge of the top portion so as to have a predetermined height, wherein the side portions include a cup-shaped aluminum structure, and the top portion, the bottom portion, and the side portions are formed in an integrated form.Type: GrantFiled: November 10, 2020Date of Patent: March 29, 2022Assignee: KMW INC.Inventors: Yong Won Seo, In Ho Kim, Hyoung Seok Yang, Oh Seog Choi
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Publication number: 20220077593Abstract: The present disclosure provides a dual-polarized antenna, which is advantageous for a reduction in size by significantly reducing the complexity of a structure while satisfying a Cross Polarization ratio (CPR) characteristic and an isolation characteristic, that is, advantages of a dual feed, by enabling a dual feed using a shift series feed even without another structure in one antenna structure.Type: ApplicationFiled: November 16, 2021Publication date: March 10, 2022Applicant: KMW INC.Inventors: Su Won LEE, Yong Won SEO, Oh Seog CHOI, Young Chan MOON
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Publication number: 20220059951Abstract: The present disclosure includes, in a dual polarized omni-directional antenna and a base station including the same, a plurality of radiating elements disposed to be spaced apart in one direction by the dual polarized omni-directional antenna, and a feed line for providing a feed signal to the plurality of radiating elements, and the plurality of radiating elements include a first radiator for generating one polarization of dual polarization, and a second radiator for generating the other polarization of the dual polarization, respectively, the first radiator is prepared on a first surface, and the second radiator is prepared on a second surface, and a main lobe direction of the first radiator and a main lobe direction of the second radiator are different directions from each other.Type: ApplicationFiled: September 2, 2021Publication date: February 24, 2022Applicant: KMW INC.Inventors: Duk Yong Kim, Young Chan Moon, In Ho Kim, Oh Seog Choi
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Publication number: 20220052750Abstract: Disclosed are a spatial multiplexing method and apparatus using polarization in a multi-beam system. As the spatial multiplexing method using polarization in a multi-beam system, an embodiment of the present invention provides a spatial multiplexing method including determining different phases and different polarizations to be applied to a first beam and a second beam, precoding a signal so that the first beam and the second beam have the determined different phases, and converting polarization of the precoded signal so that the first beam and the second beam have the determined different polarizations.Type: ApplicationFiled: October 29, 2021Publication date: February 17, 2022Applicant: KMW INC.Inventors: Tae Youl OH, Joon Hyong SHIM, Min Seon YUN, Jae Young CHOI, Kyung Hoon KWON, Young Chan MOON, Oh Seog CHOI
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Patent number: 11114772Abstract: The present disclosure includes, in a dual polarized omni-directional antenna and a base station including the same, a plurality of radiating elements disposed to be spaced apart in one direction by the dual polarized omni-directional antenna, and a feed line for providing a feed signal to the plurality of radiating elements, and the plurality of radiating elements include a first radiator for generating one polarization of dual polarization, and a second radiator for generating the other polarization of the dual polarization, respectively, the first radiator is prepared on a first surface, and the second radiator is prepared on a second surface, and a main lobe direction of the first radiator and a main lobe direction of the second radiator are different directions from each other.Type: GrantFiled: August 26, 2019Date of Patent: September 7, 2021Assignee: KMW INC.Inventors: Duk Yong Kim, Young Chan Moon, In Ho Kim, Oh Seog Choi
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Publication number: 20210126358Abstract: The preset invention relates to a dual polarized antenna and an antenna array and, more particularly, to a dual polarized antenna comprising: a top portion having a radiation patch; a bottom portion forming a probe; and side portions formed along the outer peripheral edge of the top portion so as to have a predetermined height, wherein the side portions include a cup-shaped aluminum structure, and the top portion, the bottom portion, and the side portions are formed in an integrated form.Type: ApplicationFiled: November 10, 2020Publication date: April 29, 2021Applicant: KMW INC.Inventors: Yong Won SEO, In Ho KIM, Hyoung-Seok YANG, Oh Seog CHOI
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Publication number: 20210098872Abstract: 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: ApplicationFiled: December 15, 2020Publication date: April 1, 2021Applicant: KMW INC.Inventors: In-Ho KIM, Oh-Seog CHOI, Hee KIM
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Patent number: 10910700Abstract: The present invention relates to an omnidirectional antenna for a mobile communication service, comprising: a plurality of radiation elements disposed on a horizontal surface with a mutually same angle so as to respectively radiate beams; and a power supply unit for distributing and providing a power supply signal to each of the plurality of radiation elements, wherein each of the plurality of radiation elements has a structure in which a horizontal polarization dipole radiation unit having two radiation arms is coupled to a vertical polarization dipole radiation unit having two radiation arms.Type: GrantFiled: June 3, 2019Date of Patent: February 2, 2021Assignee: KMW INC.Inventors: Young-Chan Moon, Oh-Seog Choi, In-Ho Kim, Hyoung-Seok Yang
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Patent number: 10897078Abstract: 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: GrantFiled: July 19, 2018Date of Patent: January 19, 2021Assignee: KMW INC.Inventors: In-Ho Kim, Oh-Seog Choi, Hee Kim
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Publication number: 20200343629Abstract: The present disclosure provides a shield wall for shielding multiple individual antenna modules of a massive MIMO antenna from each other. A shield wall according to at least one embodiment of the present disclosure is formed by a plurality of staple-shaped unit partitions arrayed longitudinally of the shield wall, wherein the unit partitions are designed to have optimal widths and heights according to the frequency band in use, and are arranged at a predetermined interval or less with reference to the frequency band in use, thereby providing an antenna structure which satisfies both the X-POL isolation and CO-POL isolation characteristics and can be easily fabricated in a compact, lightweight design.Type: ApplicationFiled: July 9, 2020Publication date: October 29, 2020Applicant: KMW INC.Inventors: Inho Kim, Oh-seog Choi, Hyoung-seok Yang, Jeong Uk Park, Jin Suk Seo
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Publication number: 20190379141Abstract: The present disclosure includes, in a dual polarized omni-directional antenna and a base station including the same, a plurality of radiating elements disposed to be spaced apart in one direction by the dual polarized omni-directional antenna, and a feed line for providing a feed signal to the plurality of radiating elements, and the plurality of radiating elements include a first radiator for generating one polarization of dual polarization, and a second radiator for generating the other polarization of the dual polarization, respectively, the first radiator is prepared on a first surface, and the second radiator is prepared on a second surface, and a main lobe direction of the first radiator and a main lobe direction of the second radiator are different directions from each other.Type: ApplicationFiled: August 26, 2019Publication date: December 12, 2019Applicant: KMW INC.Inventors: Duk Yong Kim, Young Chan Moon, In Ho Kim, Oh Seog Choi
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Publication number: 20190296423Abstract: The present invention relates to an omnidirectional antenna for a mobile communication service, comprising: a plurality of radiation elements disposed on a horizontal surface with a mutually same angle so as to respectively radiate beams; and a power supply unit for distributing and providing a power supply signal to each of the plurality of radiation elements, wherein each of the plurality of radiation elements has a structure in which a horizontal polarization dipole radiation unit having two radiation arms is coupled to a vertical polarization dipole radiation unit having two radiation arms.Type: ApplicationFiled: June 3, 2019Publication date: September 26, 2019Inventors: Young-Chan Moon, Oh-Seog Choi, In-Ho Kim, Hyoung-Seok Yang
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Patent number: 10403974Abstract: A compact antenna apparatus for a mobile communication system includes: a radome having at least one frequency band radiating element provided therein; at least one phase shifter portion which is provided in an inner side of the radome and which is connected to the radiating element to adjust a tilting angle of the radiating element; and a rotary knob portion which is provided so as to be exposed to the outside of the radome and which is directly coupled to the phase shifter portion to drive a phase shifter.Type: GrantFiled: June 2, 2017Date of Patent: September 3, 2019Assignee: KMW INC.Inventors: Young-Chan Moon, In-Ho Kim, Oh-Seog Choi, Hyoung-Seok Yang, Sang-Hyeong Kim, Hee Kim, Hye-Mi Jung
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Patent number: 10355342Abstract: The present invention relates to an omnidirectional antenna for a mobile communication service, comprising: a plurality of radiation elements disposed on a horizontal surface with a mutually same angle so as to respectively radiate beams; and a power supply unit for distributing and providing a power supply signal to each of the plurality of radiation elements, wherein each of the plurality of radiation elements has a structure in which a horizontal polarization dipole radiation unit having two radiation arms is coupled to a vertical polarization dipole radiation unit having two radiation arms.Type: GrantFiled: February 21, 2017Date of Patent: July 16, 2019Assignee: KMW INC.Inventors: Young-Chan Moon, Oh-Seog Choi, In-Ho Kim, Hyoung-Seok Yang
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Patent number: 10224643Abstract: In the present invention, a radio communication antenna having a narrow beam width comprises: a reflecting plate provided in the form of a plate of rectangular shape; and one radiating module disposed on the reflecting plate and generating x-polarized waves. Here: the radiating module comprises four radiating elements of dipole structure; the four radiating elements are respectively disposed at four edge portions of the reflecting plate, and each comprises two radiating arms placed in the direction extending along both sides relative to the edges; and, among the four radiating elements, those radiating elements that face each other diagonally are linked in movement so as to generate one of the x-polarized waves.Type: GrantFiled: November 13, 2015Date of Patent: March 5, 2019Assignee: KMW INC.Inventors: Young-Chan Moon, Oh-Seog Choi, In-Ho Kim, Sang-Hyeong Kim
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Publication number: 20180351248Abstract: 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: ApplicationFiled: July 19, 2018Publication date: December 6, 2018Inventors: In-Ho KIM, Oh-Seog CHOI, Hee KIM