Patents by Inventor Gi-cho Kang
Gi-cho Kang 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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Patent number: 10923823Abstract: Disclosed is a patch antenna, which is formed so that the upper surface of a dielectric layer has a wider area than the lower surface thereof and is mounted on a printed circuit board to form an air gap, thus maximizing antenna performance while implementing lightweight. The disclosed patch antenna includes a dielectric layer, a radiation patch formed on the upper surface of the dielectric layer, and a lower patch formed on the lower surface of the dielectric layer; and the dielectric layer is formed so that an area of the upper surface is wider than an area of the lower surface to form an air gap between the printed circuit board and the dielectric layer.Type: GrantFiled: June 2, 2017Date of Patent: February 16, 2021Assignees: AMOTECH CO., LTD., WINNERCOM CO., LTD.Inventors: Chui Hwang, In-Jo Jeong, Sang-O Kim, Hyun-Woo Oh, Dong-Hwan Koh, Won-Hee Lee, Tae-Byung Park, Gi-Cho Kang, Keun-Ho Baek
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Publication number: 20200313298Abstract: Disclosed is a patch antenna, which is formed so that the upper surface of a dielectric layer has a wider area than the lower surface thereof and is mounted on a printed circuit board to form an air gap, thus maximizing antenna performance while implementing lightweight. The disclosed patch antenna includes a dielectric layer, a radiation patch formed on the upper surface of the dielectric layer, and a lower patch formed on the lower surface of the dielectric layer; and the dielectric layer is formed so that an area of the upper surface is wider than an area of the lower surface to form an air gap between the printed circuit board and the dielectric layer.Type: ApplicationFiled: June 2, 2017Publication date: October 1, 2020Inventors: Chul HWANG, In-Jo JEONG, Sang-O KIM, Hyun-Woo OH, Dong-Hwan KOH, Won-Hee LEE, Tae-Byung PARK, Gi-Cho KANG, Keun-Ho BAEK
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Patent number: 10389017Abstract: A roof antenna attached to a vehicle includes an adhesive applied to a designated thickness, an upper case formed in a streamlined dome shape having an opened lower surface, and a lower case combined with the upper case, the lower case shielding the opened lower surface of the upper case and provided with an antenna module mounted on an upper surface of the lower case, wherein the lower case is combined with a roof of the vehicle, one surface of a pad formed of the adhesive is applied to a lower surface of the lower case, and another surface of the pad formed of the adhesive is attached to the roof.Type: GrantFiled: December 15, 2016Date of Patent: August 20, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Yong Sik Cho, Hee Kuk Ryeu, Soon Bag Joung, Tae Byung Park, Gi Cho Kang
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Publication number: 20170365917Abstract: A roof antenna attached to a vehicle includes an adhesive applied to a designated thickness, an upper case formed in a streamlined dome shape having an opened lower surface, and a lower case combined with the upper case, the lower case shielding the opened lower surface of the upper case and provided with an antenna module mounted on an upper surface of the lower case, wherein the lower case is combined with a roof of the vehicle, one surface of a pad formed of the adhesive is applied to a lower surface of the lower case, and another surface of the pad formed of the adhesive is attached to the roof.Type: ApplicationFiled: December 15, 2016Publication date: December 21, 2017Inventors: Yong Sik CHO, Hee Kuk RYEU, Soon Bag JOUNG, Tae Byung PARK, Gi Cho KANG
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Patent number: 8976070Abstract: A broadcasting antenna for a vehicle and a shark fin antenna apparatus having the same are provided. The broadcasting antenna includes a main board on which a feeder circuit and a ground plane are formed, a helical radiation unit which includes a plurality of helical radiators that are electrically connected to the feeder circuit and the ground plane of the main board, that are formed in a first direction, and that are coupled apart from each other by a predetermined interval, and which has a coupling feed structure, and an extended radiation unit which includes a plurality of top loaders that are electrically connected to ends of the plurality of helical radiators, respectively, that are formed in a second direction, and that are coupled to each other.Type: GrantFiled: June 12, 2012Date of Patent: March 10, 2015Assignee: Winnercom Co., Ltd.Inventors: Gi-Cho Kang, Tae-Byung Park, Sang-Min Nam, Chang-Keun Lee
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Patent number: 8810471Abstract: A circularly polarized ceramic patch antenna having an extended ground for a vehicle is provided. The extended ground is formed under a patch antenna, has a predetermined thickness, is formed of a metal conductor having the same shape as the patch antenna, and is electrically connected to a ground plane formed on a board. The thickness of the extended ground is adjusted, so that it is possible to adjust radiation efficiency of the ceramic patch antenna that operates at a specific frequency band. Thus, the ceramic patch antenna has the effect of improving directionality of a radiation pattern formed in a direction parallel to the ground plane, and the effect of reducing a null point caused by a field effect to increase an antenna gain thereof.Type: GrantFiled: June 5, 2012Date of Patent: August 19, 2014Assignee: Winnercom Co., Ltd.Inventors: Gi-Cho Kang, Tae-Byung Park, Sang-Min Nam, Chang-Keun Lee
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Publication number: 20120326935Abstract: A broadcasting antenna for a vehicle and a shark fin antenna apparatus having the same are provided. The broadcasting antenna includes a main board on which a feeder circuit and a ground plane are formed, a helical radiation unit which includes a plurality of helical radiators that are electrically connected to the feeder circuit and the ground plane of the main board, that are formed in a first direction, and that are coupled apart from each other by a predetermined interval, and which has a coupling feed structure, and an extended radiation unit which includes a plurality of top loaders that are electrically connected to ends of the plurality of helical radiators, respectively, that are formed in a second direction, and that are coupled to each other.Type: ApplicationFiled: June 12, 2012Publication date: December 27, 2012Applicant: WINNERCOM CO., LTD.Inventors: Gi-Cho KANG, Tae-Byung PARK, Sang-Min NAM, Chang-Keun LEE
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Publication number: 20120319917Abstract: A circularly polarized ceramic patch antenna having an extended ground for a vehicle is provided. The extended ground is formed under a patch antenna, has a predetermined thickness, is formed of a metal conductor having the same shape as the patch antenna, and is electrically connected to a ground plane formed on a board. The thickness of the extended ground is adjusted, so that it is possible to adjust radiation efficiency of the ceramic patch antenna that operates at a specific frequency band. Thus, the ceramic patch antenna has the effect of improving directionality of a radiation pattern formed in a direction parallel to the ground plane, and the effect of reducing a null point caused by a field effect to increase an antenna gain thereof.Type: ApplicationFiled: June 5, 2012Publication date: December 20, 2012Applicant: WINNERCOM CO., LTD.Inventors: Gi-Cho KANG, Tae-Byung PARK, Sang-Min NAM, Chang-Keun LEE
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Patent number: 7408523Abstract: An antenna assembly is disclosed which can minimize interference of antennas for communication services. The antenna assembly is suitable to minimize side-lobes and back-lobes interfering with each other in antennas used in a repeater for communication services. The antenna assembly includes a reflector having a structure capable of minimizing radiation patterns having front-to-back ratio (FTBR) characteristics, namely, back-lobes.Type: GrantFiled: January 31, 2006Date of Patent: August 5, 2008Assignee: Wireless Data Communication Co., Ltd.Inventors: Sung Ho Kong, Gi Cho Kang
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Publication number: 20080081555Abstract: A unified communication repeater for wireless communication repeats signals between a network and communication terminals via a wireless line. The unified communication repeater precisely and stably prevents oscillation generation during bidirectional signal repeating, and minimizes radiation patterns serving as signal interference between a receiver antenna and a transmitter antenna for the bidirectional signal repeating.Type: ApplicationFiled: October 3, 2006Publication date: April 3, 2008Applicant: WIRELESS DATA COMMUNICATION CO., LTDInventors: Sung Ho KONG, Gi Cho KANG
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Publication number: 20060192719Abstract: An antenna assembly is disclosed which can minimize interference of antennas for communication services. The antenna assembly is suitable to minimize side-lobes and back-lobes interfering with each other in antennas used in a repeater for communication services. The antenna assembly includes a reflector having a structure capable of minimizing radiation patterns having front-to-back ratio (FTBR) characteristics, namely, back-lobes.Type: ApplicationFiled: January 31, 2006Publication date: August 31, 2006Applicant: Wireless data Communication Co., LTDInventors: Sung Ho Kong, Gi Cho Kang
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Patent number: 6956528Abstract: This invention relates to a microstrip array antenna, especially a broad-band dual-polarized microstrip array antenna having parallel feeding structure whose consist of two parts power supplying layers each of which generates its own polarization respectively. And the broad-band dual-polarized microstrip array antenna according to the present invention arranges transmission paths for two separate linear polarization on a different layer each other in order to minimize an interference effect and a proximity feeding method and an aperture coupled method are used in order to get two separate polarization.Type: GrantFiled: June 9, 2001Date of Patent: October 18, 2005Assignees: Mission Telecom, Inc., Pawanet, Inc., Kwangwoon FoundationInventors: Byung-je Lee, Gi-cho Kang, Hak-yong Lee, Nam-young Kim, Jong-heon Kim, Guen-ho Lee, Keuk-hwan Ra
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Publication number: 20040119645Abstract: This invention relates to a microstrip array antenna, especially a broad-band dual-polarized microstrip array antenna having parallel feeding structure whose consist of two parts power supplying layers each of which generates its own polarization respectively. And the broad-band dual-polarized microstrip array antenna according to the present invention arranges transmission paths for two separate linear polarization on a different layer each other in order to minimize an interference effect and a proximity feeding method and an aperture coupled method are used in order to get two separate polarization.Type: ApplicationFiled: October 30, 2003Publication date: June 24, 2004Inventors: Byung-je Lee, Gi-cho Kang, Hak-yong Lee, Nam-young Kim, Jong-heon Kim, Guen-ho Lee, Keuk-hwan Ra