ETRI Knowledge Sharing Platform : Choi Won Kyu

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Choi Won Kyu

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Department: Agriculture, Animal, Aquaculture & Ocean Intelligence Research Ce

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KSP Keywords: Metallic Objects Passive Radio Frequency Identification(RFID) Uhf Band Microstrip Line Rfid Tag Antenna Metallic Surfaces Read Range Passive Rfid Ceramic Material Feeding Structure Radiation Efficiency Radio Frequency Identification (Rfid) Planar Inverted-F Antenna Low Profile Impedance Matching Ground Planes(GP) High Gain Matching Network Microstrip Patch Antennas Uhf Rfid Tag Radiating Patch Proximity-Coupled Slot Array Antenna Rfid Applications Rfid Technology Shorting Pins High Speed Ku-Band Reading Distance Baseband Receiver Radiating Element Feeding Network Measurement System Rectangular Slot Series-Fed Coplanar Waveguide Feeding(CPW) Near-Field Antenna Reflection Coefficient Valid Data Electric Coupling Integrated Aperture Loop Antenna Size Reduction Ultra-High Frequency U-Shaped Slot Equivalent Circuit Model(ECM) Satellite Communication Via-Hole Baseband Signal Dc-Offset Superstrate Layer Linearly Polarized Receiver Structure Antenna Measurements U-Slot Antenna Substrate Band-Stop Filter Circular Patch Fractional Impedance Near Field Communication(NFC) Aperture Coupling Aperture Coupled Antenna Analytical Expression Band Rejection Filters Coupling Feeding Different Geometries Dielectric Substrate Electric Field Intensity Extracted Power Fault Diagnosis Lossy Substrate Millimetre-Wave Meander Line Microstrip Patch Array Millimeter Wave(mmWave) Patch Array Antenna Power Gain Patch-Type Q-Band Rfid System Resonant Characteristics Radiation Element Switch Circuit Single Patch Short-Range Transmission Efficiency Uhf Antennas Vehicle Guidance System Autonomous Vehicle Band-Limited Data Rate Electrical Measurements Gain Variation Feature Fusion High Power Amplifier(HPA) High Resistivity Silicon Inductive Coupled Optimal Load Quality-Factor(Q-factor) Radio Frequency Identification Tag Voltage Standing Wave Ratio(VSWR) Learning Model Circularly Polarized Proximity-Coupling Analytical Results Aperture-Coupled Feeding Average Power Bridge Safety Coupled Resonators Dielectric Superstrate Electromagnetic Energy Electrical Energy Feed Line Insensitive Antenna Induced Voltage Magnetic Coupling Parallel Plate Waveguide Soft Ferrite Wpt System Deep Learning(DL) Antenna Structure Active Rfid Tag Ambient Vibration Coupling Interference High Q Inductively Coupled Feed Real-Time Pharmaceutical Products Platform Development Rfid Reader Antenna Radiation Pattern Rfid Chip Experimental Result Feed Structure Ka-Band Limited Channel Microstrip Array Antenna Magnetic Field(MF) Magnetically Coupled Resonator Space Diversity Transmitting Power Sensor Networks Wireless Sensor Arc-Fault Active Circuits Automotive Sensor Circuit Simulation Complex Conjugate Dielectric Loss Environment Model Matching Circuit Micromachining Technology Near-Field Distribution Practical Method Power Amplifiers(PAs) Tag Signal(TS) V-Slot Wireless System Wireless Power Transfer Systems(WPTS's) Active Array Approximate Calculation Acceleration Of Vibration Combined Structure Chip Impedance Efficiency Improvement Fractional Bandwidth(FBW) Frequency Deviation Frequency Splitting Integration Platform Matched Filter(MF) Multi-Beam Antenna Micro-Electro-Mechanical System(MEMS) Meandered Dipole Magnetic Cores Phase Inversion Power Amplifier Mmic Power Losses Resonant Frequency(Fr) Simulation Tool Surface Micromachining Stable Performance Wide Impedance Bandwidth Safety Management Circuit Analysis Center Frequency Complex Environment Diversity Antenna Defected Ground Structure(DGS) Ferrite Material High Frequency Band Improvement Method Rfid Sensor Tag Reader Applications Smart Shelf 3.5 Ghz

Articles (46)
Patents (19)
Technology Transfer (11)
R&D Reports (9)
Standards (0)
Monographs/Talk (0)

논문 검색결과
Type	Year	Title	Cited
Journal	2024	Series-arc-fault diagnosis using feature fusion-based deep learning model Won-Kyu Choi ETRI Journal, v.권호미정, pp.1-14	0
Conference	2024	Concept of biosphere environment model: Real-time complex environments for greenhouse Sang-yeon Lee International Commission of Agricultural and Biosystems Engineering (CIGR) 2024, pp.1-1
Conference	2023	A Study on Hybrid Composite Loss Function Model for Satellite Image Object Segmentation 전서영 한국 인공지능 학술대회 2023, pp.211-212
Conference	2022	Study on Fine Displacement Detection of an Object in Enclosed Space Using mm-Wave Radar 최원규 한국인터넷정보학회 학술 발표 대회 (춘계) 2022, pp.1-2
Journal	2018	Circuit Analysis of Achievable Transmission Efficiency in an Overcoupled Region for Wireless Power Transfer Systems Won-Kyu Choi IEEE Systems Journal, v.12, no.4, pp.3873-3876	10
Journal	2018	Study on Electromagnetic Energy Transducer in Ambient Vibration Won-Kyu Choi IET Power Electronics, v.11, no.12, pp.1983-1990	5
Journal	2014	HF RFID Reader Antenna with Loop Switch for Avoiding Magnetic Coupling Won-Kyu Choi ETRI Journal, v.36, no.6, pp.881-888	3
Conference	2014	수신 다이버시티 기능을 갖는 RFID 리더 안테나 박찬희 한국전자파학회 종합 학술 발표회 2014, pp.1-1
Journal	2014	Trends in Technology for High-Speed RFID and Beamforming 조광수 전자통신동향분석, v.29, no.5, pp.40-50
Conference	2013	RFID Tag on PCB in UHF Band Won-Kyu Choi Progress in Electromagnetics Research Symposium (PIERS) 2013 in Stockholm, pp.489-492
Journal	2013	Slot-Array Antenna for UHF RFID Shelf Applications Wonkyu Choi Microwave and Optical Technology Letters, v.55, no.7, pp.1511-1515	4
Journal	2012	Design of Reader Baseband Receiver Structure for Demodulating Backscattered Tag Signal in a Passive RFID Environment Ji-Hoon Bae ETRI Journal, v.34, no.2, pp.147-158	8
Conference	2011	Circularly polarized slot-array antenna for an RFID shelf in the UHF Wonkyu Choi International Symposium on Antennas and Propagation (ISAP) 2011, pp.1-4
Conference	2011	U-shaped Slot-array Antenna for RFID Shelf in the UHF Won Kyu Choi Antennas and Propagation Society International Symposium (APSURSI) 2011, pp.1449-1451	2
Journal	2011	Study on the Reader Baseband Receiver Structure for the Demodulation of Subcarrier Signal in a Passive RFID Environment Ji-Hoon Bae Microwave and Optical Technology Letters, v.53, no.6, pp.1264-1272	4
Journal	2010	Near-Field Antenna for a Radio Frequency Identification Shelf in the UHF Band W. Choi IET Microwaves, Antennas and Propagation, v.4, no.10, pp.1538-1542	16
Conference	2009	Ceramic Patch Antenna for UHF RFID Tag Embedded in Metallic Objects Jeong Seok Kim Antennas and Propagation Society International Symposium (APSURSI) 2009, pp.1-4	3
Conference	2009	Near-field Antenna for RFID Smart Shelf in UHF Won Kyu Choi Antennas and Propagation Society International Symposium (APSURSI) 2009, pp.1-4	14
Journal	2009	Study on the Demodulation Structure of Reader Receiver in a Passive RFID Environment J.-H. Bae Progress in Electromagnetics Research, v.91, pp.243-258
Conference	2008	Small RFID Tag Antenna for Metallic Surface Won Kyu Choi Asia-Pacific Microwave Conference (APMC) 2008, pp.1-4	2
Conference	2008	Ceramic Patch Antenna using inductive coupled feed for UHF RFID Tag Moubtable on Metallic Objects Jeong-Seok Kim Asia-Pacific Microwave Conference (APMC) 2008, pp.1-4	3
Conference	2008	Radiation Efficiency Improvement Method of RFID Tag Antenna for Metallic Objects Printed on Lossy Substrate Hae-Won Son Asia-Pacific Microwave Conference (APMC) 2008, pp.1-4	8
Journal	2008	Radiation Efficiency Improvement of RFID Tag Antenna for Metallic Objects Printed on Lossy Substrate 손해원 한국전자파학회논문지, v.19, no.11, pp.1265-1271
Journal	2008	A Small RFID Tag Antenna using Proximity-coupling to Identify Metallic Objects Won Kyu Choi Microwave and Optical Technology Letters, v.50, no.11, pp.2978-2981	9
Journal	2008	RFID Tag Antenna Coupled by Shorted Microstrip Line for Metallic Surfaces Won Kyu Choi ETRI Journal, v.30, no.4, pp.597-599	20
Journal	2008	UHF RFID Tag Antenna Using Two FIFAs Embedded in Metallic Objects J.-S. Kim Electronics Letters, v.44, no.20, pp.1-2	46
Journal	2008	RFID Tag Antenna Coupled by Shorted Microstrip Line for Metallic Surfaces Won Kyu Choi ETRI Journal, v.30, no.4, pp.597-599	20
Conference	2008	Small Ceramic Patch Antenna for UHF RFID Tag Mountable On Metallic Objects Jeong-Seok Kim International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC) 2008, pp.861-864
Conference	2008	A Small RFID Tag Antenna to Identify Metallic Objects Won Kyu Choi International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting (APSURSI) 2008, pp.1-4	8
Conference	2007	Platform-insensitive Antenna for RFID Sensor Tag in the UHF Band Won Kyu Choi IEEE Antennas and Propagation Society International Symposium (AP-S) 2007, pp.2277-2280	2
Conference	2006	RFID Tag Antenna with a Meandered Dipole and Inductively Coupled Feed Won Kyu Choi IEEE Antennas and Propagation Society International Symposium 2006, pp.619-622	29
Journal	2006	Polarization and Space Diversity Antenna Using Inverted-F Antennas for RFID Reader Applications Jong Sung Kim IEEE Antennas and Wireless Propagation Letters, v.5, no.1, pp.265-268	40
Journal	2006	Novel U-Slot and V-Slot DGSs for Bandstop Filter With Improved Q Factor Duk Jae Woo IEEE Transactions on Microwave Theory and Techniques, v.54, no.6, pp.2840-2847	201
Journal	2006	An RFID Tag Using a Planar Inverted-F Antenna Capable of Being Stuck to Metallic Objects Won Kyu Choi ETRI Journal, v.28, no.2, pp.216-218	49
Conference	2005	An Active RF-ID Tag for Container Management Jin Sup Kim Asia-Pacific Microwave Conference (APMC) 2005, pp.1-4	1
Journal	2005	Design of RFID Reader Antenna Using Two Orthogonally Oriented 1x2 Sub-Arrays at 433 MHz 김종성 전자공학회논문지 TC, v.42, no.9, pp.97-100
Conference	2005	A planar inverted-F antenna (PIFA) to be attached to metal containers for an active RFID tag Wonkyu Choi IEEE Antennas and Propagation Society International Symposium 2005, pp.508-511	13
Journal	2005	UHF RFID 태그 안테나 기술 손해원 전자파기술, v.16, no.2, pp.55-63
Journal	2005	Floating-patch MEMS Antennas on HRS Substrate for Millimetre-wave Applications Y.H. Cho Electronics Letters, v.41, no.1, pp.5-6	0
Conference	2004	Ka-band multi-beam antenna Nakseon Seong IEEE Antennas and Propagation Society International Symposium 2004, pp.4004-4007
Conference	2004	High gain and broadband microstrip array antenna using combined structure of corporate and series feeding Wonkyu Choi IEEE Antennas and Propagation Society International Symposium 2004, pp.2484-2487
Journal	2003	A Slot Array Antenna with a Simple Feed Structure for Broadband Multimedia Wireless Applications 성영제 한국전자파학회논문지, v.14, no.3, pp.209-216
Journal	2003	A High-Gain Microstrip Patch Array Antenna Using a Superstrate Layer Won Kyu Choi ETRI Journal, v.25, no.5, pp.407-411	55
Conference	2003	RF integrated aperture coupled array antenna for satellite communication at Ku-band Jong Moon Lee International Symposium on Phased Array Systems and Technology (PAST) 2003, pp.339-344	2
Conference	2003	RF integrated aperture coupled antenna for satellite communication at Ku-band Jong Moon Lee IEEE Antennas and Propagation Society International Symposium 2003, pp.702-705
Conference	2003	High gain and broadband microstrip patch antenna using a superstrate layer Wonkyu Choi IEEE Antennas and Propagation Society International Symposium 2003, pp.292-295

특허 검색결과
Status	Year	Patent Name	Country
Registered	2022	APPARATUS AND METHOD FOR PREDICTING REMAINING LIFETIME OF ENVIRONMENT DATA COLLECTION SENSOR IN LIVESTOCK HOUSE	UNITED STATES
Registered	2021	SYSTEM AND METHOD FOR RECOGNIZING DYNAMIC ANOMALIES OF MULTIPLE LIVESTOCK EQUIPMENT IN SMART FARM SYSTEM
Registered	2021	SYSTEM AND METHOD OF MONITORING IN-PEN LIVESTOCK BY USING EDGE INFORMATION ABOUT LIVESTOCK	UNITED STATES
Registered	2021	SMART BARN SYSTEM AND SMART BARN CONTROL METHOD FOR DETECTING ABNORMAL SIGN OF LIVESTOCK AND TAG ATTACHABLE TO LIVESTOCK	UNITED STATES
Registered	2020	METHOD AND APPARATUS FOR CONFIGURING CLUSTER IN WIRELESS COMMUNICATION SYSTEM	UNITED STATES
Registered	2020	SYSTEM AND METHOD FOR MONITORING LIVESTOCK USING EGDE INFORMATION	KOREA
Registered	2020	System and method for recognizing dynamic anomalies of multiple livestock equipment in a smart farm system	KOREA
Registered	2020	SERVER, USER TERMINAL, AND DISINFECTION MANAGEMENT METHOD OF LIVESTOCK VEHICLES	KOREA
Registered	2019	METHOD AND APPARATUS FOR CONFIGURING CLUSTER IN WIRELESS COMMUNICATION SYSTEM	KOREA
Registered	2019	APPARATUS AND METHOD FOR RECONFIGURING MICROSERVICE ARCHITECTURE	KOREA
Registered	2019	METHOD AND APPARATUS FOR CONFIGURING CLUSTER IN WIRELESS COMMUNICATION SYSTEM	KOREA
Registered	2017	HIGH EFFICIENT ELECTROMAGNETIC VIBRATION ENERGY HARVESTER	KOREA
Registered	2015	RFID reader antenna	KOREA
Registered	2014	RECEIVING APPARATUS AND METHOD FOR RFID READER	UNITED STATES
Registered	2013	APPARATUS AND METHOD FOR RECEIVING OF RFID READER	KOREA
Registered	2013	TAG INTEGRATED CIRCUIT APPARATUS AND METHOD FOR FABRICATING TAG INTEGRATED CIRCUIT APPARATUS	UNITED STATES
Registered	2012	TAG INTEGRATED CIRCUIT APPARATUS AND METHOD FOR FABRICATING TAG INTEGRATED CIRCUIT APPARATUS	KOREA
Registered	2010	SYMBOL SYNCHRONIZATION APPARATUS AND METHOD OF PASSIVE RFID READER	UNITED STATES
Registered	2008	박막 트랜지스터 및 그 제조 방법	KOREA

기술이전 검색결과
Year	Technology	Transaction Count	Manager
2023	Multi-object radiant temperature sensing system	1	Jung Jae-Young
2023	Energy analysis technology for aqua-farm using digital twin	1	Lee Sangyeon
2022	Livestock Safety Monitoring System(Triplet-E) Technology	1	Kim You Jin
2022	The technology of integrated autonomous operation for smart livestock	5	Hyeon Park
2022	Edge AI based Livestock Entrance Vehicles Monitoring Technology	1	Jung Jae-Young
2021	smart livestock sensorpack technology for monitoring of Poor livestock environment	2	Park Dae Heon
2020	Technology for detecting anomalies of operating equipment in smart farm	2	Hyeon Park
2020	Gateway technology for IoTware-OCF interworking	2	Kim Dae Ho
2020	Task XML Editor technology for IoTware framework integrated development environment	1	Jang Il-Soon
2018	System Technology for Converged Energy Safety Management	1	Doh Yoonmee
2015	Multiple Antenna Diversity RFID Reader Technology	1	Jung Jae-Young

연구보고서 검색결과
Type	Year	Research Project	Primary Investigator
Annual Report	2016	The Development of the Technology for Bridge Safety Management Based on the Ambient EH Wireless Sensor Tagging	Chan-Won Park
Final Report	2015	The Development of Passive RFID Technology for Improvement of Reliability and High Speed with Large Scaled Memory	Chan-Won Park
Annual Report	2014	The Development of Passive RFID Technology for Improvement of Reliability and High Speed with Large Scaled Memory	Chan-Won Park
Annual Report	2013	USN/WoT Integration Platform Development for IoR Service	Ham Ho-Sang
Annual Report	2013	Development of Autonomous Vehicle Guidance System in Cooperation with Infrastructure	Ham Ho-Sang
Annual Report	2013	The Development of Passive RFID Technology for Improvement of Reliability and High Speed with Large Scaled Memory	Ham Ho-Sang
Annual Report	2013	Development of Wireless Automotive Sensor Networks	Ham Ho-Sang
Annual Report	2005	Development of Antenna Measurement System Technology	Yun Je Hoon
Annual Report	2004	Development of Antenna Measurement System Technology	Yun Je Hoon

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