Patents by Inventor Soon-Soo Oh
Soon-Soo Oh 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: 20230400493Abstract: Disclosed is a radio wave device test system, comprising a fixed part configured to fix a radio wave device; a positioner system configured to control a rotation of the radio wave device by controlling the fixed part; an arch structure whose central point is located at a position where the radio wave device is located; a plurality of probes disposed to be spaced apart from one another at fixed intervals in the arch structure, and configured to receive a radio frequency (RF) signal from the raid wave device; and a plurality of receiving modules located at the plurality of probes, respectively, and configured to transform the RF signal into in-phase/quadrature (I/Q) data by carrying out digital transformation for the RF signal and to detect information on amplitude and a phase from the I/Q data.Type: ApplicationFiled: September 24, 2022Publication date: December 14, 2023Applicant: National Radio Research AgencyInventors: KANG WOOK KIM, SOON SOO OH, YOUNG BAE JUNG, JONG HYUK LIM, JUNG KUY PARK, SAM YOUNG JUNG
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Patent number: 9121874Abstract: An apparatus for measuring radiated power of an antenna includes a chamber which an absorber is attached to a wall thereof; a source antenna and a test antenna configured to be arranged within the chamber; a rotational axis configured to adjust an arrangement angle of the test antenna in up-and-down directions; and a roll positioner configured to rotate the test antenna. Further, the apparatus includes a turntable configured to be provided within the chamber and be rotated in a left-to-right direction; a connection unit configured to allow the test antenna, to rotate in the left-to-right direction; and a supporting unit configured to be rotatably connected to one end of the rotational axis which the other end thereof is rotatably connected to the roll positioner.Type: GrantFiled: January 10, 2013Date of Patent: September 1, 2015Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Soo Oh, Young Hwan Lee, Hyung Do Choi
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Publication number: 20140136134Abstract: A method of calculating an electromagnetic wave, includes measuring an electromagnetic wave emitted from an electronic device using an electromagnetic-wave scanner; and receiving the electromagnetic wave as input to detect an electromagnetic wave value in a proximity plane at a prescribed first distance from the electronic device. Further, the method includes calculating an electromagnetic wave at a point by a second distance from the electronic device using the electromagnetic wave value.Type: ApplicationFiled: July 31, 2013Publication date: May 15, 2014Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Soo OH, Hyung Do CHOI, Seung Keun PARK, Young Seung LEE, Sang Bong JEON
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Publication number: 20140057571Abstract: Disclosed are an apparatus for measuring radiated power and a method thereof. The apparatus for measuring radiated power includes: a measurement unit configured to receive an RF signal radiated from an antenna of the wireless communication device to generate a radiated power measurement value; a driving unit configured to vertically ascend or descend the measurement unit from the ground; and an operation control unit configured to control the driving unit to ascend the measurement unit to a point at which the antenna is installed and convert the radiated power measurement value into a measurement value on a target point. In accordance with the embodiment of the present invention, even when the antenna of the wireless communication device is inclined to the ground, the radiated power of the wireless communication device can be accurately measured by compensating for the change in the measurement distance due to the inclined angle.Type: ApplicationFiled: July 24, 2013Publication date: February 27, 2014Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Soo OH, Young Hwan LEE, Hyung Do CHOI
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Patent number: 8618993Abstract: Provided is a loop antenna. The loop antenna includes a first antenna element embodied as a coaxial cable, a second antenna element embodied as a line and connected to one end of the first antenna element in series, a third antenna eLement embodied as a line, having one end connected to a ground plane and the other end connected to the other end of the first antenna element in series, and a power feeding cable for supplying power to the second antenna element.Type: GrantFiled: October 26, 2007Date of Patent: December 31, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Je-Hoon Yun, Jung-Ick Moon, Soon-Soo Oh, Min-Sung Kwon, Sung-Uk You, Chang-Joo Kim, Chieteuk Ahn
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Patent number: 8471774Abstract: An antenna radiation pattern measurement device that measures a radiation pattern of an AUT by using a source antenna includes a control unit, an analysis unit, and a measurement unit. The control unit controls driving of the source antenna and the AUT. The analysis unit measures an electric field value from a radio frequency (RF) signal that is transmitted from one of the source antenna and the AUT and received by the other antenna. In addition, the measurement unit controls the control unit and the analysis unit and measures a radiation pattern of the AUT by using the electric field value.Type: GrantFiled: September 19, 2008Date of Patent: June 25, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Soon-Soo Oh, Yong-Heui Cho, In-Kui Cho, Je Hoon Yun, Soon Ik Jeon, Chang-Joo Kim
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Patent number: 8423316Abstract: A camera based positioner (CBP) for near-field measurement and a method therefor, and a near-field measurement system are provided. A measurement probe and an antenna under test (AUT) are automatically aligned to a position for near-field antenna measurement by recognizing a position and a rotation angle of the AUT based on an interval and an angle between neighboring laser sources represented in an image taken by emitting laser beams from at least two laser sources located with a predetermined interval and a predetermined angle.Type: GrantFiled: April 24, 2008Date of Patent: April 16, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Yong-Heui Cho, Soon-Soo Oh, Jung-Ick Moon, Joung-Myoun Kim, Je-Hoon Yun
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Patent number: 8373611Abstract: A probe and an antenna, more particularly, a probe and antenna using a waveguide, which reduces the multiple reflection of electromagnetic waves. The probe includes: and the antenna each include a waveguide and a resonance unit is entirely or partially disposed in the inside of the waveguide, and comprising the resonance unit including a conductor.Type: GrantFiled: December 2, 2009Date of Patent: February 12, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Soon-Soo Oh, Jung-Ick Moon, Joung-Myoun Kim, Soon-Ik Jeon, Chang-Joo Kim
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Patent number: 8330661Abstract: Provided is a system and method for measuring an antenna radiation pattern in a Fresnel region based on a phi-variation method. The system includes a rotator for changing angles of a reference antenna and a target antenna; a vector network analyzer for obtaining radiation pattern data in accordance with transmission/reception radio frequency (RF) signals between the reference antenna and the target antenna; a measurement unit for calculating a far-field radiation pattern based on the radiation pattern data received from the vector network analyzer; and a controller for controlling the rotator according to a measurement angle transmitted from the measurement unit.Type: GrantFiled: November 30, 2007Date of Patent: December 11, 2012Assignee: Electronics and Telecommunications Research InstituteInventors: Soon-Soo Oh, Yong-Hee Cho, Je-Hoon Yun, Joung-Myoun Kim, Jung-Ick Moon
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Publication number: 20120162031Abstract: Disclosed is a method for predicting a phase pattern using a magnitude pattern in near-field or Fresnel field formed by antenna radiation, including: determining a first parameter group including a first actual distance between a source antenna and a probe and the magnitude pattern at the first distance; assuming a second parameter group including a second distance that is an effective distance between the source antenna and the probe, a current magnitude distribution of the source antenna and a current phase distribution of the source antenna, based on the first parameter group; calculating the magnitude pattern at the first distance based on the second parameter group; and determining the phase pattern at the first distance when the magnitude pattern at the calculated first distance matches with the magnitude pattern at the first distance included in the first parameter group by the comparison therebetween.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Soo Oh, Seong-Min Kim, Young-Hwan Lee
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Publication number: 20120142290Abstract: Provided is an apparatus and method for measuring effective radiated power. The apparatus includes a reference signal power measuring unit configured to measure power of a reference signal from a wireless signal transmitted from a wireless device, and an effective radiated power calculating unit configured to calculate effective radiated power according to an allocation ratio of a reference signal in an entire signal domain using the measured reference signal power from the reference signal power measuring unit.Type: ApplicationFiled: January 21, 2011Publication date: June 7, 2012Inventors: Seong-Min KIM, Soon-Soo OH, Young-Hwan LEE
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Patent number: 8018380Abstract: There is a provided a system for measuring an antenna radiation pattern in a Fresnel region, including: a fixed antenna and a movable antenna located in the Fresnel region to acquire a far-field radiation pattern; a moving unit for moving upward or downward to adjust a measuring angle of the movable antenna; a rotation unit to rotate a rotation shaft horizontally; a vector network analyzing unit for outputting an radio frequency (RF) signal to one of the fixed antenna and the movable antenna as a transmission antenna, receiving the RF signal received through the other one of the fixed antenna and the movable antenna as a receiving antenna, and detecting a complex value; a control and communication unit for controlling the vector network analyzing unit and a control unit, and performing a data communication; and the control unit for providing a vertical/horizontal rotation force to the moving unit and the rotation unit under a control of the control and communication unit.Type: GrantFiled: April 10, 2007Date of Patent: September 13, 2011Assignee: Electronics and Telecommunications Research InstituteInventors: Soon-Soo Oh, Je-Hoon Yun, Jung-Ick Moon, Joung-Myoun Kim, Yong-Heui Cho
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Publication number: 20100238086Abstract: A double-ridged horn antenna having a higher-order mode suppressor includes a pair of upper and lower ridges arranged opposite to each other, each of the upper and lower ridges having an inner surface to guide electromagnetic waves and an outer surface arranged opposite to the inner surface; upper and lower flares fixedly attached to respective outer surfaces of the upper and lower ridges; left and right flares coupled to the upper and lower flares to form a rectangular cone structure; and metal conductors symmetrically positioned between the upper and lower ridges and the left and right flares.Type: ApplicationFiled: February 22, 2010Publication date: September 23, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jung-Ick Moon, Soon-Soo Oh, Joung-Myoun Kim, Soon-Ik Jeon, Chang-Joo Kim
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Publication number: 20100238077Abstract: The present invention relates to an apparatus and method for receiving an antenna measuring signal, and a system of measuring an antenna. In particular, the present invention relates to an apparatus and method for receiving an antenna measuring signal that can remove a measurement error caused by motion of an antenna cable, and a system for measuring an antenna. According to the apparatus and method for receiving an antenna measuring signal and the system and method for measuring an antenna according to the present invention, it is possible to remove a coupling effect of an RF cable of a receiving antenna side while measuring antenna characteristics, thereby minimizing a measurement error of the antenna.Type: ApplicationFiled: October 1, 2008Publication date: September 23, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: In Kui Cho, Je Hoon Yun, Soon-Soo Oh, Jung Ick Moon, Joung Myoun Kim, Soon Ik Jeon, Chang-Joo Kim
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Publication number: 20100207827Abstract: An antenna radiation pattern measurement device that measures a radiation pattern of an AUT by using a source antenna includes a control unit, an analysis unit, and a measurement unit. The control unit controls driving of the source antenna and the AUT. The analysis unit measures an electric field value from a radio frequency (RF) signal that is transmitted from one of the source antenna and the AUT and received by the other antenna. In addition, the measurement unit controls the control unit and the analysis unit and measures a radiation pattern of the AUT by using the electric field value.Type: ApplicationFiled: September 19, 2008Publication date: August 19, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Soo Oh, Yong-Heui Cho, In-Kui Cho, Je Hoon Yun, Soon Ik Jeon, Chang-Joo Kim
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Publication number: 20100134370Abstract: A probe and an antenna reduces the multiple reflection of electromagnetic waves. The probe includes: a waveguide; and a resonance unit entirely or partially disposed in the inside of the waveguide and comprising a conductor.Type: ApplicationFiled: December 2, 2009Publication date: June 3, 2010Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon-Soo Oh, Jung-Ick Moon, Joung-Myoun Kim, Soon-Ik Jeon, Chang-Joo Kim
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Publication number: 20100128124Abstract: A camera based positioner (CBP) for near-field measurement and a method therefor, and a near-field measurement system are provided. A measurement probe and an antenna under test (AUT) are automatically aligned to a position for near-field antenna measurement by recognizing a position and a rotation angle of the AUT based on an interval and an angle between neighboring laser sources represented in an image taken by emitting laser beams from at least two laser sources located with a predetermined interval and a predetermined angle.Type: ApplicationFiled: April 24, 2008Publication date: May 27, 2010Inventors: Yong-Heui Cho, Soon-Soo Oh, Jung-Ick Moon, Joung-Myoun Kim, Je-Hoon Yun
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Publication number: 20100109957Abstract: Provided are an antenna radiation performance measuring apparatus and a method for designing the same. The apparatus includes a chamber configured to include a transmit antenna radiating electromagnetic wave, a receive antenna receiving the electromagnetic wave, and an electromagnetic wave absorber absorbing the electromagnetic wave, and a reflector disposed on one side of the chamber between the transmit antenna and the receive antenna, inclined at a predetermined angle, and configured to reflect an electromagnetic wave radiated in a direction to the one side from the transmit antenna.Type: ApplicationFiled: November 2, 2009Publication date: May 6, 2010Applicant: Electronics and Telecommunications Research InstituteInventors: Jung-Ick MOON, Soon-Soo OH, Joung-Myoun KIM, Soon-Ik JEON, Chang-Joo KIM
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Publication number: 20100073246Abstract: Provided is a system and method for measuring an antenna radiation pattern in a Fresnel region based on a phi-variation method. The system includes a rotator for changing angles of a reference antenna and a target antenna; a vector network analyzer for obtaining radiation pattern data in accordance with transmission/reception radio frequency (RF) signals between the reference antenna and the target antenna; a measurement unit for calculating a far-field radiation pattern based on the radiation pattern data received from the vector network analyzer; and a controller for controlling the rotator according to a measurement angle transmitted from the measurement unit.Type: ApplicationFiled: November 30, 2007Publication date: March 25, 2010Inventors: Soon-Soo Oh, Yong-Hee Cho, Je-Hoon Yun, Joung-Myoun Kim, Jung-Ick Moon
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Publication number: 20090322634Abstract: Provided is a loop antenna. The loop antenna includes a first antenna element embodied as a coaxial cable, a second antenna element embodied as a line and connected to one end of the first antenna element in series, a third antenna eLement embodied as a line, having one end connected to a ground plane and the other end connected to the other end of the first antenna element in series, and a power feeding cable for supplying power to the second antenna element.Type: ApplicationFiled: October 26, 2007Publication date: December 31, 2009Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Je-Hoon Yun, Jung-Ick Moon, Soon-Soo Oh, Min-Sung Kwon, Sung-Uk You, Chang-Joo Kim, Chieteuk Ahn