Patents by Inventor Young-Chan Moon
Young-Chan Moon 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: 20220359985Abstract: 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: ApplicationFiled: July 14, 2022Publication date: November 10, 2022Applicant: KMW INC.Inventors: Young Chan MOON, Sung Hwan SO, Oh Seog CHOI
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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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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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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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Publication number: 20210336659Abstract: Provided is a multiple-input multiple-output (MIMO) antenna having a lightweight stacked structure. According to one aspect of the present invention, there is provided a MIMO antenna assembly having a lightweight stacked structure, in which a calibration network, which was provided between antenna elements and filters in the related art, is provided on one printed circuit board (PCB), together with a power amplifier and a digital circuit, and filters are closely coupled to the bottom of the PCB on which the feeding network is provided. The present invention employs a strategy in which an antenna assembly is reduced to a compact size while managing phase deviation caused due to filters at an acceptable level.Type: ApplicationFiled: July 4, 2021Publication date: October 28, 2021Applicant: KMW INC.Inventors: Duk Yong KIM, Bae Mook JEONG, Chang Woo YOO, Young Chan MOON, Nam Shin PARK, Bum Sik PARK, Min Seon YUN, Min Sik PARK, Sung Ho JANG
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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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Patent number: 11101551Abstract: Provided is an antenna device including a first antenna body, and a power supply module detachably attached to the first antenna body. The power supply module is provided on a fastening region of a first radiation fin of the first antenna body.Type: GrantFiled: May 14, 2019Date of Patent: August 24, 2021Assignee: KMW INC.Inventors: Duk Yong Kim, Young Chan Moon, Min Sik Park, Chang Woo Yoo, Bae Mook Jeong, Nam Shin Park, Min Seon Yun
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Patent number: 11088731Abstract: Provided is a multiple-input multiple-output (MIMO) antenna having a lightweight stacked structure. According to one aspect of the present invention, there is provided a MIMO antenna assembly having a lightweight stacked structure, in which a calibration network, which was provided between antenna elements and filters in the related art, is provided on one printed circuit board (PCB), together with a power amplifier and a digital circuit, and filters are closely coupled to the bottom of the PCB on which the feeding network is provided. The present invention employs a strategy in which an antenna assembly is reduced to a compact size while managing phase deviation caused due to filters at an acceptable level.Type: GrantFiled: May 15, 2019Date of Patent: August 10, 2021Assignee: KMW INC.Inventors: Duk Yong Kim, Bae Mook Jeong, Chang Woo Yoo, Young Chan Moon, Nam Shin Park, Bum Sik Park, Min Seon Yun, Min Sik Park, Sung Ho Jang
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Patent number: 10985472Abstract: The present invention provides a waveguide slot array antenna having an excitation slot arrangement radiating a signal corresponding to an operating frequency in a radiation plate, the waveguide slot array antenna comprising: a first auxiliary radiation plate installed on a main radiation plate and rotating a polarization plane of a signal radiated from the excitation slot arrangement of the main radiation plate; and a second auxiliary radiation plate installed on the first auxiliary radiation plate and distributing and radiating the signal, the polarization plane of which has been rotated in the first auxiliary radiation plate.Type: GrantFiled: February 25, 2020Date of Patent: April 20, 2021Assignee: KMW INC.Inventors: Young-Chan Moon, Chang-Seob Choi, Chi-Back Ryu, Yong-Won Seo
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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: 10886966Abstract: Disclosed herein are a method for eliminating passive intermodulation distortion (PIMD) and an antenna apparatus using the same. According to an embodiment, the antenna apparatus includes a main antenna used for transmission and reception of an RF signal; an auxiliary antenna used for reception of an RF signal; and a passive intermodulation distortion (PIMD) eliminator configured to calculate PIMD contained in a received signal of the main antenna using a received signal of the auxiliary antenna, and to eliminate the calculated PIMD from the received signal of the main antenna.Type: GrantFiled: May 17, 2019Date of Patent: January 5, 2021Assignee: KMW INC.Inventors: Young Chan Moon, Min Seon Yun, Sung-hwan So
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Patent number: 10707924Abstract: A distributed antenna system supporting MIMO service is disclosed. Some embodiments provide a distributed antenna system supporting MIMO communication, including first node, second node and one transmission line. The first node receives MIMO downlink signals of a plurality of MIMO services each including N (a natural number of 2 or more) MIMO downlink signals, and performs, for each MIMO service, frequency-conversion of N?1 MIMO downlink signals among the N MIMO downlink signals, to different frequency band from original frequency band, to generate N MIMO downlink signals without mutually overlapping frequency bands. The second node performs, for each MIMO service, frequency-conversion of the MIMO downlink signals having been frequency-converted by first node, in a complementary manner, to reconstruct the MIMO downlink signals of original frequency band. The single transmission line is used between the first node and second node for transmitting N downlink signals without mutually overlapping frequency bands.Type: GrantFiled: October 26, 2018Date of Patent: July 7, 2020Assignee: KMW INC.Inventors: Duk-yong Kim, Young-chan Moon, Bung-chul Kim, Sang-hyo Kang
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Publication number: 20200194902Abstract: The present invention provides a waveguide slot array antenna having an excitation slot arrangement radiating a signal corresponding to an operating frequency in a radiation plate, the waveguide slot array antenna comprising: a first auxiliary radiation plate installed on a main radiation plate and rotating a polarization plane of a signal radiated from the excitation slot arrangement of the main radiation plate; and a second auxiliary radiation plate installed on the first auxiliary radiation plate and distributing and radiating the signal, the polarization plane of which has been rotated in the first auxiliary radiation plate.Type: ApplicationFiled: February 25, 2020Publication date: June 18, 2020Applicant: KMW INC.Inventors: Young-Chan MOON, Chang-Seob CHOI, Chi-Back RYU, Yong-Won SEO
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Patent number: 10622706Abstract: A mobile communication base station antenna includes: a reflecting plate; a first patch-type radiating element installed on the reflecting plate; a second dipole-type radiating element installed and stacked on the first radiating element; and a circuit board for feeding power installed on the same surface as a surface of the reflecting plate on which the first radiating element and the second radiating element are installed and having a conductive pattern formed thereon to provide a feeding signal to the first radiating element.Type: GrantFiled: May 10, 2017Date of Patent: April 14, 2020Assignee: KMW INC.Inventors: Young-Chan Moon, Sung-Hwan So, Soon-Wook Kim, Jae-Hwan Lim, Seong-Ha Lee
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Patent number: 10622726Abstract: The present invention provides a waveguide slot array antenna having an excitation slot arrangement radiating a signal corresponding to an operating frequency in a radiation plate, the waveguide slot array antenna comprising: a first auxiliary radiation plate installed on a main radiation plate and rotating a polarization plane of a signal radiated from the excitation slot arrangement of the main radiation plate; and a second auxiliary radiation plate installed on the first auxiliary radiation plate and distributing and radiating the signal, the polarization plane of which has been rotated in the first auxiliary radiation plate.Type: GrantFiled: May 10, 2017Date of Patent: April 14, 2020Assignee: KMW INC.Inventors: Young-Chan Moon, Chang-Seob Choi, Chi-Back Ryu, Yong-Won 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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Patent number: 10476127Abstract: A multi-band antenna apparatus according to one of various embodiments of the present invention may comprise: an antenna housing in which an antenna module having two or more frequency bands is mounted; a plurality of repeaters detachably coupled to the antenna housing according to slide movement thereof; connector parts which protrude from the antenna housing and are connected to the plurality of repeaters, respectively; and a bracket which fixes the antenna housing to an outer wall and couples the plurality of repeaters to the antenna housing in an individually detachable manner.Type: GrantFiled: August 24, 2016Date of Patent: November 12, 2019Assignee: KMW INC.Inventors: In-Ho Kim, Hyoung-Seok Yang, Chang-Woo Yoo, Young-Chan Moon, Seong-Man Kang
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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