Patents by Inventor Man-Seok Uhm
Man-Seok Uhm 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: 20200153106Abstract: An integrated horn antenna with an integral polarization converter, and a method of manufacturing the integrated horn antenna are disclosed. The integrated horn antenna includes a horn, and a polarizer of which at least a portion is disposed in an internal space defined by an inner wall of the horn.Type: ApplicationFiled: August 16, 2019Publication date: May 14, 2020Applicant: Electronics and Telecommunications Research InstituteInventors: So-hyeun YUN, Changsoo KWAK, Man Seok UHM, Hongyeol LEE, Dong Pil CHANG
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Publication number: 20190227159Abstract: Disclosed is a method of sensing illegal flight of a low-flying drone. Here, the method of sensing illegal flight includes: changing a direction of a beam on the basis of a preset period; and detecting an object by using the beam changed on the basis of the preset period. Here, the direction of the beam is changed on the basis of a first direction and a second direction. The first direction is changed on the basis of conversion of a center frequency, and the second direction is changed on the basis of a phase and a particular value.Type: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Applicant: Electronics and Telecommunications Research InstituteInventors: Sang Hyouk CHOI, Jae Young AHN, Man Seok UHM, Jong Suk CHAE
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Publication number: 20190123778Abstract: A monolithic microwave integrated circuit (MIMIC) for a phased array antenna system, and a phased array antenna system including the MIMIC are provided. The MIMIC includes a first amplifier including a first input terminal and a first output terminal, a second amplifier including a second input terminal and a second output terminal, a first switch connectable to the first input terminal and the second output terminal, and a second switch connectable to the first output terminal and the second input terminal.Type: ApplicationFiled: February 14, 2018Publication date: April 25, 2019Applicant: Electronics and Telecommunications Research Instit uteInventors: Jin Cheol JEONG, Dong Hwan SHIN, Man Seok UHM, IN BOK YOM
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Patent number: 9905903Abstract: A resonator filter according to a first exemplary embodiment of the present invention includes: a cover formed with a first coupling hole; a housing connected to the cover to form an inner space and having a second coupling hole formed at a bottom of the inner space; a dielectric material mounted around the second coupling hole in the bottom of the inner space of the housing; a first rod inserted to the first coupling hole to be connected to the cover and pressing the dielectric material; and a second rod inserted to the second coupling hole to be connected to the housing to be close to the dielectric material and tuning a resonance frequency by controlling a separation distance from the first rod.Type: GrantFiled: January 7, 2016Date of Patent: February 27, 2018Assignee: Electronics and Telecommunications Research InstituteInventors: Changsoo Kwak, Man Seok Uhm
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Patent number: 9774384Abstract: Disclosed are a multi-beam antenna system and a method of controlling an output power thereof. An embodiment of the present invention includes a beam forming network configured to receive a plurality of signals to be a plurality of beams, to divide each of the plurality of signals to a plurality of divided signals, and to output a plurality of excited signals by adjusting and combining amplitude and phase of each of the plurality of divided signals, an MPA set having a plurality of MPAs configured to receive corresponding excited signals among the plurality of excited signals from the beam forming network and to control output powers of the received excited signals according to communication traffic, and a feed array having a plurality of feeds configured to form a multi-beam by being excited according to the amplitude and phase of the excited signals from the MPA set.Type: GrantFiled: June 11, 2014Date of Patent: September 26, 2017Assignee: Electronics and Telecommunications Research InstituteInventors: So-Hyeun Yun, Man-Seok Uhm, Hong-Yeol Lee, Chang-Soo Kwak, In-Bok Yom
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Patent number: 9614265Abstract: A tunable filter device that changes a central frequency and a bandwidth is provided. The tunable filter device may include a body forming a cavity together with a cover, a resonator attached to or integrally formed on a lower surface of the cavity, a frequency-tuning element including a head and a shaft, the shaft passed through the cover and inserted in the resonator, and a cam disposed on the head to contact the head, wherein an insertion length of the shaft is controlled by the cam.Type: GrantFiled: August 4, 2014Date of Patent: April 4, 2017Assignee: Electronics and Telecommunications Research InstituteInventors: Chang Soo Kwak, Youn Sub Noh, Man Seok Uhm, So Hyeun Yun, Hong Yeol Lee, In Bok Yom
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Publication number: 20170033424Abstract: A dual-mode filter is provided. A filter may include a cylindrical cavity configured to implement resonance modes with a plurality of different resonant frequencies, and a plurality of slot irises formed on a side of the cylindrical cavity, and the plurality of slot irises may be arranged asymmetrically to each other with respect to the cylindrical cavity.Type: ApplicationFiled: April 28, 2016Publication date: February 2, 2017Applicant: Electronics and Telecommunications Research InstituteInventors: Chang Soo KWAK, Man Seok Uhm, In Bok Yom, So Hyeun Yun, Hong Yeol Lee
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Publication number: 20170018850Abstract: The present disclosure relates to a horn antenna apparatus. The horn antenna apparatus includes: a first horn antenna; and a second horn antennas provided with an input waveguide which is arranged to correspond to an output waveguide of the first horn antenna, wherein the output waveguide of the first horn antenna and the input waveguide of the second horn antenna are connected to be overlapped with each other to form a mode conversion waveguide, and higher modes of a TM11 mode and a TE12 mode are generated in an aperture of an output waveguide of the second horn antenna.Type: ApplicationFiled: May 20, 2016Publication date: January 19, 2017Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: So Hyeun YUN, Chang Soo KWAK, Man Seok UHM, In Bok YOM, Hong Yeol LEE
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Publication number: 20160294030Abstract: A resonator filter according to a first exemplary embodiment of the present invention includes: a cover formed with a first coupling hole; a housing connected to the cover to form an inner space and having a second coupling hole formed at a bottom of the inner space; a dielectric material mounted around the second coupling hole in the bottom of the inner space of the housing; a first rod inserted to the first coupling hole to be connected to the cover and pressing the dielectric material; and a second rod inserted to the second coupling hole to be connected to the housing to be close to the dielectric material and tuning a resonance frequency by controlling a separation distance from the first rod.Type: ApplicationFiled: January 7, 2016Publication date: October 6, 2016Inventors: Changsoo KWAK, Man Seok UHM
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Patent number: 9419345Abstract: The present invention relates to a dual reflector antenna with a hybrid subreflector, and more particularly, to a dual reflector antenna with a subreflector having a structure in which an ellipse and a hyperbola are combined. An exemplary embodiment of the present invention provides a dual reflector antenna including: a main reflector; and a hybrid subreflector which faces the main reflector and has a first structure and a second structure which are combined therein.Type: GrantFiled: August 19, 2014Date of Patent: August 16, 2016Assignee: Electronics and Telecommunications Research InstitInventors: So Hyeun Yun, Chang Soo Kwak, Man Seok Uhm, In Bok Yom, Hong Yeol Lee
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Publication number: 20150349429Abstract: The present invention relates to a dual reflector antenna with a hybrid subreflector, and more particularly, to a dual reflector antenna with a subreflector having a structure in which an ellipse and a hyperbola are combined. An exemplary embodiment of the present invention provides a dual reflector antenna including: a main reflector; and a hybrid subreflector which faces the main reflector and has a first structure and a second structure which are combined therein.Type: ApplicationFiled: August 19, 2014Publication date: December 3, 2015Inventors: So Hyeun YUN, Chang Soo KWAK, Man Seok UHM, In Bok YOM, Hong Yeol LEE
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Publication number: 20150280299Abstract: Disclosed is a waveguide resonator for a band pass filter, which configures a short-circuit stub low-frequency band pass filter in a waveguide resonator to pass a low frequency and reject a stop band, thereby effectively removing undesired spurious or harmonic components on a frequency spectrum.Type: ApplicationFiled: February 18, 2015Publication date: October 1, 2015Inventors: Hong Yeol LEE, Man Seok UHM, Chang Soo KWAK, So Hyeun YUN, In Bok YOM
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Publication number: 20150116058Abstract: Provided is a radio frequency (RF) cavity filter including a tuning bolt holding member, the RF cavity filter including a top block, a bottom block to form a cavity along with the top block, a resonator disposed in the cavity, a tuning bolt to penetrate through the top block, and a tuning bolt holding member disposed to be in contact with one end of the tuning bolt to hold the tuning bolt, which may fix a position of the tuning bolt.Type: ApplicationFiled: October 27, 2014Publication date: April 30, 2015Applicant: Electronics and Telecommunications Research InstituteInventors: Hong Yeol LEE, Man Seok UHM, Chang Soo KWAK, So Hyeun YUN, In Bok YOM
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Patent number: 8970441Abstract: Provided is an antenna apparatus which employs a small number of antenna devices and is intended to obtain a desired pattern without adjusting amplitude level and phase of each antenna device. The antenna apparatus includes a first ridge horn antenna, and a second ridge horn antenna spaced apart from the first ridge horn antenna by a determined distance. Here, a multi-beam pattern is generated using a third-order mode beam pattern of a synthetic beam obtained by synthesizing beams respectively radiated from the first and second ridge horn antennas. Accordingly, the antenna apparatus can be simplified, and a desired multi-beam pattern can be obtained without adjusting signal level and phase of each antenna device. Also, by employing the ridge horn antennas as array devices, the antenna apparatus can be used in a wide frequency band.Type: GrantFiled: October 19, 2012Date of Patent: March 3, 2015Assignee: Electronics and Telecommunications Research InstituteInventors: So Hyeun Yun, Hong Yeol Lee, Chang Soo Kwak, Man Seok Uhm, Jang Sup Choi, In Bok Yom
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Publication number: 20150035623Abstract: A tunable filter device that changes a central frequency and a bandwidth is provided. The tunable filter device may include a body forming a cavity together with a cover, a resonator attached to or integrally formed on a lower surface of the cavity, a frequency-tuning element including a head and a shaft, the shaft passed through the cover and inserted in the resonator, and a cam disposed on the head to contact the head, wherein an insertion length of the shaft is controlled by the cam.Type: ApplicationFiled: August 4, 2014Publication date: February 5, 2015Inventors: Chang Soo KWAK, Youn Sub NOH, Man Seok UHM, So Hyeun YUN, Hong Yeol LEE, In Bok YOM
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Publication number: 20150009069Abstract: Disclosed are a multi-beam antenna system and a method of controlling an output power thereof. An embodiment of the present invention includes a beam forming network configured to receive a plurality of signals to be a plurality of beams, to divide each of the plurality of signals to a plurality of divided signals, and to output a plurality of excited signals by adjusting and combining amplitude and phase of each of the plurality of divided signals, an MPA set having a plurality of MPAs configured to receive corresponding excited signals among the plurality of excited signals from the beam forming network and to control output powers of the received excited signals according to communication traffic, and a feed array having a plurality of feeds configured to form a multi-beam by being excited according to the amplitude and phase of the excited signals from the MPA set.Type: ApplicationFiled: June 11, 2014Publication date: January 8, 2015Inventors: So-Hyeun YUN, Man-Seok UHM, Hong-Yeol LEE, Chang-Soo KWAK, In-Bok YOM
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Patent number: 8797122Abstract: A butler matrix includes at least one input coupler that is positioned at an input end of the butler matrix, receives an input signal, and divides and outputs it to a plurality of paths, and at least one output coupler that receives a signal from the input coupler and divides the signal into a plurality of paths to output it as an output signal. A separation coupler is formed in an intersecting path including an intersecting section at which transmission paths intersect among a plurality of paths through which a signal is transmitted to separate signals transmitted through different transmission paths. Further, a compensation coupler is formed in a path excluding the intersecting path to compensate a phase difference.Type: GrantFiled: September 11, 2012Date of Patent: August 5, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Hongyeol Lee, Man Seok Uhm, So-hyeun Yun, ChangSoo Kwak, Jang-sup Choi, In Bok Yom
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Publication number: 20140184438Abstract: A transmit/receive module for radar may include a radio frequency (RF) circuit unit including an RF substrate and an RF part; and a direct current (DC) power supply circuit unit including a printed circuit board (PCB) and a DC power supply circuit part. The RF circuit unit and the DC power supply circuit unit may be disposed so that a rear surface of the RF circuit unit faces a rear surface of the DC power supply circuit unit, and may be assembled to have a separate space using at least one separation wall.Type: ApplicationFiled: December 23, 2013Publication date: July 3, 2014Applicant: Electronics and Telecommunications Research InstituteInventors: Dong Pil Chang, In Bok Yom, Youn Sub Noh, Jin Cheol Jeong, Hong Gu Ji, Man Seok Uhm
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Patent number: 8766851Abstract: A butler matrix and a multi-port amplifier having the same, capable of splitting a single input signal into N-signals or combining N-signals into a single output are provided. The hybrids are provided in a predetermined disposition, the input port and the output port of the hybrids are provided in a predetermined direction and the waveguides are provided in a bended structure such that paths for connecting the hybrids have no crossing portion.Type: GrantFiled: November 3, 2011Date of Patent: July 1, 2014Assignee: Electronics and Telecommunications Research InstituteInventors: Hong-Yeol Lee, Man-Seok Uhm, So-Hyeun Yun, In-Bok Yom
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Publication number: 20140087678Abstract: The apparatus for receiving a wireless signal with anti-jamming includes: a wireless signal receiving unit receiving a wireless signal and including at least one antenna; and a jamming signal blocking unit disposed in front of the wireless signal receiving unit to block a jamming signal input from at least one direction and having a size or an interval from the wireless signal receiving unit determined according to at least one of an antenna pattern of the wireless signal receiving unit, a direction in which the jamming signal is input, and a level of the jamming signal. According to an exemplary embodiment of the present invention, it is possible to smoothly receive a targeted signal while blocking the jamming signal under the environment in which a general signal and the jamming signal coexist.Type: ApplicationFiled: December 14, 2012Publication date: March 27, 2014Applicant: Electronics And Telecommunications Research InstituteInventors: So Hyeun YUN, Man Seok UHM, Jang Sup CHOI, Chang Soo KWAK, Hong Yeol LEE, Jeom Hun LEE, In Bok YOM