Location History:
- Gyeonggi-do, KR (2010)
- Suwon-si, KR (2011)
- Daejeon-si, KR (2010 - 2013)
Company Filing History:
5 out of 131,906 
1 out of 1,575 
Years Active: 2010-2013
Title: Innovations of Cheol-gyu Hwang
Introduction
Cheol-gyu Hwang is a notable inventor based in Daejeon-si, South Korea. He has made significant contributions to the field of waveguide structures and electromagnetic bandgap technologies. With a total of 5 patents to his name, Hwang's work has advanced the understanding and application of these technologies in various industries.
Latest Patents
One of Hwang's latest patents is a multi-layer waveguide structure that features spaced apart first and second signal units of different widths and heights. This innovative waveguide, which consists of a multi-layer metal structure, includes a method for applying multiple metal layers on a substrate with insulating layers in between. This design minimizes conductive loss by allowing current to disperse uniformly across wide regions between the signal line and ground lines.
Another significant patent involves a resonator and bandpass filter that incorporates an overlay electromagnetic bandgap (EBG) structure. This invention provides a method for manufacturing the resonator by forming a transmission line and ground plates on a substrate. By arranging reflector units at regular intervals along the transmission line and selectively removing some reflectors, Hwang's design prevents electromagnetic waves from leaking out of the substrate, ensuring a high Q characteristic in high-frequency environments.
Career Highlights
Throughout his career, Cheol-gyu Hwang has worked with prominent organizations such as Samsung Electronics and Seoul National University. His experience in these institutions has allowed him to collaborate on various innovative projects and further his research in waveguide and EBG technologies.
Collaborations
Hwang has collaborated with notable colleagues, including Sung-Tae Choi and Dong-Hyun Lee. Their joint efforts have contributed to the advancement of technologies in their respective fields.
Conclusion
Cheol-gyu Hwang's contributions to the field of waveguide structures and electromagnetic bandgap technologies highlight his innovative spirit and dedication to research. His patents reflect a commitment to minimizing conductive loss and enhancing the performance of electronic components. Hwang's work continues to influence advancements in technology and engineering.