Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Il Ho Jung"'
Publikováno v:
2019 IEEE Conference on Antenna Measurements & Applications (CAMA).
In this paper, we design a balun that operates at 60GHz. The proposed balun is based on a substrate integrated waveguide (SIW) structure that can reduce losses in high frequency bands. A single-ended signal is divided by 3-dB power divider, and then
Publikováno v:
2019 IEEE Conference on Antenna Measurements & Applications (CAMA).
In this paper, we design a Hybrid Supply Modulator (HSM) based on Non-Inverting Amplifier for High Power Amplifier (HPA) operating in C-band. Compared with the conventional HSM, the Switching stage and the R-sense stage are eliminated to prevent the
Publikováno v:
Journal of the Korean society for quality management. 44:565-574
Purpose: In this study, A reliability assurance model (or reliability program) is proposed to evaluate the reliability of an armed vehicle. The reliability assurance is performed through the reliability-centered activities during its life cycle of de
Publikováno v:
Journal of Welding and Joining. 32:11-18
TSV(through silicon via) filling technology is making a hole in Si wafer and electrically connecting technique between front and back of Si die by filling with conductive metal. This technology allows that a three-dimensionally connected Si die can m
Autor:
Il-Ho Jung, Jangbom Chai, Jin-Yong Mok, Young-Guk Kim, Jong-Hwi Seo, Tae-Won Park, Seok-Won Kim
Publikováno v:
Vehicle System Dynamics. 44:615-630
The dynamic interaction between the catenary and the pantographs of high-speed trains is a very important factor that affects the stable electric power supply. In order to design a reliable current collection system, a multibody simulation model can
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers A. 29:1123-1131
In this paper, a formulation for a spatial sliding joint, which a general multibody can move along a very flexible cable, is derived using absolute nodal coordinates and non-generalized coordinate. The large deformable motion of a spatial cable is pr
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers A. 29:1085-1092
The OHT(Over Head Transportation) Vehicle transports heavy products quickly and repeatedly at the industrial workplace. The belt in the OHT vehicle is used to support the weight of the OHT Cage. The fatigue of the belt is caused by the dynamic load d
Publikováno v:
Transactions of the Korean Society of Mechanical Engineers A. 29:1005-1012
Publikováno v:
JSME International Journal Series C. 48:224-233
Publikováno v:
Key Engineering Materials. :1427-1433