Seok Kil Han

Title: Seok Kil Han: Innovator in High-Frequency Technologies

Introduction

Seok Kil Han is a prominent inventor based in Taejon, South Korea. He has made significant contributions to the field of high-frequency technologies, holding a total of three patents. His work focuses on enhancing wireless communication systems and measuring high-speed devices.

Latest Patents

One of his latest patents is a high-temperature superconductor low-pass filter designed to suppress broadband harmonics. This innovative filter includes a coupled line section and a transmission line section, which work together to effectively remove unwanted harmonics in wireless communication systems. The design features two microstrip open-stub type parallel stripe lines stacked on a high-temperature superconductor, allowing for exceptional stopband characteristics that are 7-8 times wider than the cutoff frequency. This advancement enables the filter to efficiently eliminate sub-harmonics that commonly occur in wireless systems.

Another notable patent is a near-field optical heterodyne measurement system utilizing a near-field fiber-optic probe. This system is capable of measuring the characteristics of high-frequency and high-speed devices. It includes a combining unit that produces a submicron-size optical beam by combining two optical beams of different frequencies. The near-field fiber-optic probe injects this beam into the sample device, while a position controlling unit ensures precise positioning for accurate measurements.

Career Highlights

Seok Kil Han has worked at the Electronics and Telecommunications Research Institute, where he has contributed to various innovative projects. His expertise in high-frequency technologies has positioned him as a key figure in advancing wireless communication systems.

Collaborations

Throughout his career, Seok Kil Han has collaborated with notable colleagues, including Kwang Yong Kang and Min Hwan Kwak. These partnerships have fostered a collaborative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Seok Kil Han's contributions to high-frequency technologies and wireless communication systems are noteworthy. His patents reflect a commitment to innovation and excellence in the field. His work continues to influence advancements in technology, making him a significant figure in the industry.