Company Filing History:
Years Active: 2022-2023
Title: Innovations of Jihun Choi
Introduction
Jihun Choi is an accomplished inventor based in Silver Spring, MD (US). He has made significant contributions to the field of wireless communication and antenna technology. With a total of 2 patents, his work focuses on optimizing communication techniques and enhancing antenna performance.
Latest Patents
One of Jihun Choi's latest patents is titled "Covert communication technique for intelligent reflecting surface assisted wireless networks." This patent discloses a novel methodology for wireless networks that optimizes the transmission probability, transmit power at an agent, and the reflection matrix of an intelligent reflecting surface (IRS) for covert RF communications. Key features of this innovation include an exact closed-form expression for the expected detection error probability (DEP) at an adversary, considering the transmission probability at the agent. Additionally, a novel method is developed to optimize these parameters with the goal of maximizing the achievable rate at a client while ensuring a covertness constraint. This method may require only one-dimensional line search schemes, achieves near-optimal performance, and exhibits an enhanced achievable data rate compared to conventional techniques without transmission probability optimization.
Another significant patent by Jihun Choi is "Active matching network design for electrically small resonant antennas." This invention involves an active matching network for impedance matching to a miniature antenna. It comprises a cross-coupled transistor pair, where each transistor has an emitter, base, and collector. The configuration is designed to match an impedance near resonance of the high Q miniature antenna to an input impedance using a complex negative impedance that includes resistance, inductance, and capacitance.
Career Highlights
Jihun Choi is currently employed by the US Government as represented by the Secretary of the Army. His work in this capacity allows him to contribute to advancements in technology that support national defense and communication systems.
Collaborations
Some of his notable coworkers include Fikadu T Dagefu and Justin S Kong. Their collaboration enhances the innovative environment in which Jihun Choi operates.
Conclusion
Jihun Choi's contributions to wireless communication and antenna technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of complex engineering challenges and a drive to develop solutions that enhance communication systems.