Company Filing History:
9 out of 2,618 
2 out of 11,316 
1 out of 133 
Years Active: 1993-2021
Title: Innovations of Chulsoon Park
Introduction
Chulsoon Park is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of telecommunications and electronics, holding a total of 11 patents. His work focuses on advanced antenna technology and variable gain amplifiers, showcasing his expertise in innovative electronic solutions.
Latest Patents
Among his latest patents, Chulsoon Park has developed a dual polarization antenna with high isolation. This invention features a first differential signal feeding unit that extends from a first input port toward one side of a patch radiator through a dielectric substrate. It branches into a balun structure to provide first and second feeding probes for differentially feeding vertically polarized signals. Additionally, a second differential signal feeding unit extends from a second input port toward another side of the patch radiator, also branching into the balun structure to provide third and fourth feeding probes for horizontally polarized signals. This design minimizes electric field interference and enhances the radiation pattern.
Another notable invention is a wideband variable gain amplifier (VGA) with low phase variation. The first VGA amplifies an input signal in a current steering manner, allowing for variable amplification gain. As the variable gain amount increases, the relative phase change also gradually increases. The second VGA further amplifies the output signal, with opposing phase changes that cancel each other out, resulting in a wideband frequency range with low phase change.
Career Highlights
Chulsoon Park has worked with esteemed institutions such as the Korea Advanced Institute of Science and Technology and the Electronics and Telecommunications Research Institute. His experience in these organizations has contributed to his innovative research and development in the field.
Collaborations
Chulsoon Park has collaborated with notable colleagues, including InnYeal Oh and Kyuhwan Shim. Their joint efforts have further advanced the research and development of electronic technologies.
Conclusion
Chulsoon Park's contributions to the field of electronics and telecommunications are significant, with a focus on innovative antenna designs and amplifiers. His work continues to influence advancements in technology, showcasing the importance of innovation in the industry.