共 50 条
- [21] Chip-scale optical phased array for broadband two-dimensional beam steering at visible wavelengthsOPTICS AND LASER TECHNOLOGY, 2025, 181Wang, Xiaomin论文数: 0 引用数: 0 h-index: 0机构: Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R China Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R ChinaJi, Peirui论文数: 0 引用数: 0 h-index: 0机构: Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R China Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R ChinaZhang, Ze论文数: 0 引用数: 0 h-index: 0机构: Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R China Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R ChinaZhang, Guofeng论文数: 0 引用数: 0 h-index: 0机构: Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R China Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R ChinaYang, Shuming论文数: 0 引用数: 0 h-index: 0机构: Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R China Xi An Jiao Tong Univ, State Key Lab Mfg Syst Engn, Xian 710049, Shaanxi, Peoples R China
- [22] Practical two-dimensional beam steering system using an integrated tunable laser and an optical phased arrayAPPLIED OPTICS, 2020, 59 (32) : 9985 - 9994Ma, Weichao论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaTan, Su论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, 1037 Luoyu Rd, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, 1037 Luoyu Rd, Wuhan 430074, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaWang, Kuankuan论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, 1037 Luoyu Rd, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, 1037 Luoyu Rd, Wuhan 430074, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaGuo, Weihua论文数: 0 引用数: 0 h-index: 0机构: Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, 1037 Luoyu Rd, Wuhan 430074, Peoples R China Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, 1037 Luoyu Rd, Wuhan 430074, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaLiu, Ye论文数: 0 引用数: 0 h-index: 0机构: Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu, Sichuan, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaLiao, Lianggang论文数: 0 引用数: 0 h-index: 0机构: Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu, Sichuan, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaZhou, Lianggang论文数: 0 引用数: 0 h-index: 0机构: Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu, Sichuan, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaZhou, Jun论文数: 0 引用数: 0 h-index: 0机构: Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu, Sichuan, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaLi, Xin论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaLiang, Lei论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R ChinaLi, Wangzhe论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R China Chinese Acad Sci, Aerosp Informat Res Inst, Natl Key Lab Microwave Imaging Technol, Beijing 100190, Peoples R China
- [23] Two-dimensional free-space beam steering with an optical phased array on silicon-on-insulatorOPTICS EXPRESS, 2011, 19 (22): : 21595 - 21604Doylend, J. K.论文数: 0 引用数: 0 h-index: 0机构: Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAHeck, M. J. R.论文数: 0 引用数: 0 h-index: 0机构: Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USABovington, J. T.论文数: 0 引用数: 0 h-index: 0机构: Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAPeters, J. D.论文数: 0 引用数: 0 h-index: 0机构: Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USAColdren, L. A.论文数: 0 引用数: 0 h-index: 0机构: Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USABowers, J. E.论文数: 0 引用数: 0 h-index: 0机构: Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA
- [24] Hybrid integrated silicon nitride optical phased array with phase calibration for two-dimensional beam steeringOPTICS EXPRESS, 2025, 33 (05): : 11123 - 11137Wu, Yunhan论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Lab, Space Based Comp Syst Res Ctr, Hangzhou 310000, Peoples R China Zhejiang Lab, Space Based Comp Syst Res Ctr, Hangzhou 310000, Peoples R ChinaJiang, Ruitao论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, State Key Lab Laser Interact Matter, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China Zhejiang Lab, Space Based Comp Syst Res Ctr, Hangzhou 310000, Peoples R ChinaWang, Yiqun论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Lab, Space Based Comp Syst Res Ctr, Hangzhou 310000, Peoples R China Zhejiang Lab, Space Based Comp Syst Res Ctr, Hangzhou 310000, Peoples R ChinaFu, Wei论文数: 0 引用数: 0 h-index: 0机构: Zhejiang Lab, Space Based Comp Syst Res Ctr, Hangzhou 310000, Peoples R China Zhejiang Lab, Space Based Comp Syst Res Ctr, Hangzhou 310000, Peoples R China
- [25] Two-dimensional optical phased array antenna on silicon-on-insulatorOPTICS EXPRESS, 2010, 18 (13): : 13655 - 13660Van Acoleyen, Karel论文数: 0 引用数: 0 h-index: 0机构: Univ Ghent, Dept Informat Technol, Photon Res Grp, IMEC, B-9000 Ghent, Belgium Univ Ghent, Dept Informat Technol, Photon Res Grp, IMEC, B-9000 Ghent, BelgiumRogier, Hendrik论文数: 0 引用数: 0 h-index: 0机构: Univ Ghent, Dept Informat Technol, Electromagnet Grp, B-9000 Ghent, Belgium Univ Ghent, Dept Informat Technol, Photon Res Grp, IMEC, B-9000 Ghent, Belgium论文数: 引用数: h-index:机构:
- [26] Application of optical dispersion techniques in phased array antenna beam steeringPHOTONICS APPLICATIONS IN ASTRONOMY, COMMUNICATIONS, INDUSTRY, AND HIGH-ENERGY PHYSICS EXPERIMENTS II, 2004, 5484 : 678 - 682Muszkowski, M论文数: 0 引用数: 0 h-index: 0机构: Przemysowy Inst Telekomunikacji, PL-04051 Warsaw, Poland Przemysowy Inst Telekomunikacji, PL-04051 Warsaw, PolandSêdek, E论文数: 0 引用数: 0 h-index: 0机构: Przemysowy Inst Telekomunikacji, PL-04051 Warsaw, Poland Przemysowy Inst Telekomunikacji, PL-04051 Warsaw, Poland
- [27] Application of optical dispersion techniques in phased array antenna beam steeringMIKON-2004, VOL 1, CONFERENCE PROCEEDINGS, 2004, : 55 - 57Muszkowski, M论文数: 0 引用数: 0 h-index: 0机构: Telecommun Res Inst, PL-04051 Warsaw, Poland Telecommun Res Inst, PL-04051 Warsaw, PolandSedek, E论文数: 0 引用数: 0 h-index: 0机构: Telecommun Res Inst, PL-04051 Warsaw, Poland Telecommun Res Inst, PL-04051 Warsaw, Poland
- [28] Butler matrix enabled multi-beam optical phased array for two-dimensional beam-steering and rangingPhotonics Research, 2024, 12 (05) : 912 - 920Zhou Z.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To SJTU-Pinghu Institute of Intelligent Optoelectronics, Pinghu State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao ToXu W.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao ToLiu C.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao ToXu R.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao ToZhu C.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao ToLi X.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao ToLu L.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To State Grid Sichuan Electric Power Company Chengdu Xinjin Power Supply Branch, Xinjin State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao ToChen J.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To State Grid Sichuan Electric Power Company Chengdu Xinjin Power Supply Branch, Xinjin State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao ToZhou L.论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To State Grid Sichuan Electric Power Company Chengdu Xinjin Power Supply Branch, Xinjin State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Key Laboratory of Navigation and Location Services, Shanghai Institute for Advanced Communication and Data Science, Department of Electronic Engineering, Shanghai Jiao To
- [29] Butler matrix enabled multi-beam optical phased array for two-dimensional beam-steering and rangingPhotonicsResearch, 2024, 12 (05) : 912 - 920ZUOYU ZHOU论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U SJTU-Pinghu Institute of Intelligent Optoelectronics State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong UWEIHAN XU论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong UCHUXIN LIU论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong URUIYANG XU论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong UCHEN ZHU论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong UXINHANG LI论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong ULIANGJUN LU论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U State Grid Sichuan Electric Power Company Chengdu Xinjin Power Supply State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong UJIANPING CHEN论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U State Grid Sichuan Electric Power Company Chengdu Xinjin Power Supply State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong ULINJIE ZHOU论文数: 0 引用数: 0 h-index: 0机构: State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U State Grid Sichuan Electric Power Company Chengdu Xinjin Power Supply State Key Laboratory of Advanced Optical Communication Systems and Networks,Shanghai Key Laboratory of Navigation and Location Services,Shanghai Institute for Advanced Communication and Data Science,Department of Electronic Engineering,Shanghai Jiao Tong U
- [30] Demonstration of Two-Dimensional Beam Steering through Wavelength Tuning with One-Dimensional Silicon Optical Phased ArrayPHOTONICS, 2022, 9 (11)Yoon, Hyeonho论文数: 0 引用数: 0 h-index: 0机构: Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South Korea Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South KoreaRhee, Hyun-Woo论文数: 0 引用数: 0 h-index: 0机构: Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South Korea Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South KoreaKwon, Nam-Hyun论文数: 0 引用数: 0 h-index: 0机构: Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South Korea Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South KoreaKim, Jae-Yong论文数: 0 引用数: 0 h-index: 0机构: Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South Korea Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South KoreaKim, Junhyeong论文数: 0 引用数: 0 h-index: 0机构: Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South Korea Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South KoreaYoon, Jinhyeong论文数: 0 引用数: 0 h-index: 0机构: Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South Korea Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South KoreaPark, Hyo-Hoon论文数: 0 引用数: 0 h-index: 0机构: Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South Korea Korea Adv Inst Sci & Technol, Dept Elect Engn, 291 Daehak Ro, Daejeon 34141, South Korea