Sung Hawan

Title: Innovations by Inventor Sung Hawan

Introduction

Sung Hawan is a notable inventor based in Gyeonggi-do, South Korea. He has made significant contributions to the field of antenna technology, holding 2 patents that showcase his innovative approach to mobile wireless devices.

Latest Patents

One of his latest patents is titled "Active antenna structure maximizing aperture and anchoring RF behavior." This invention involves a methodology where a set of antennas is shaped to fit within the outer housing of a mobile device. The design incorporates tuning points that compensate for hand effects and loading when the device is in use. The body of the mobile device becomes part of the antenna, acting as an anchor for the poles within the matching circuit. The antennas are actively tuned based on detection criteria while dynamically tracking system performance. The structure is based on a loaded loop coupled to an isolated magnetic dipole (IMD) element, with the loop being actively tuned according to design rules residing in a processor within the mobile device.

Another significant patent is "Multi leveled active antenna configuration for multiband MIMO LTE system." This invention describes an active antenna system and algorithm that allows for dynamic tuning and optimization of antenna system parameters for a MIMO system. The system adjusts correlation and isolation between antennas to enhance throughput. As environmental changes affect one or multiple antennas, corrections are made by selecting the optimal antenna radiation pattern and adjusting the electrical length and/or reactive loading of transmission lines connecting the antennas. Multiple IMD antennas are co-located and connected with a feed network that includes switches to adjust phase length for transmission lines. Filtering is integrated into the feed network to improve the rejection of unwanted frequencies.

Career Highlights

Sung Hawan is currently employed at Ethertronics, Inc., where he continues to develop innovative antenna solutions. His work has significantly impacted the mobile communications industry, particularly in enhancing the performance of wireless devices.

Collaborations

Some of his notable coworkers include Laurent Desclos and Ji-Chul Lee, who contribute to the collaborative efforts in advancing antenna technology.

Conclusion

Sung Hawan's contributions to antenna technology through his innovative patents demonstrate his expertise and commitment to enhancing mobile wireless communication. His work continues to influence the industry and pave the way for future advancements.