Yi Li

Title: Innovations of Yi Li in Frequency Re-configurable OAM Antennas

Introduction

Yi Li is an accomplished inventor based in Hefei, China. He has made significant contributions to the field of antennas, particularly in the development of frequency re-configurable orbital angular momentum (OAM) antennas. His work focuses on enhancing the functionality and efficiency of antennas used in various applications.

Latest Patents

Yi Li holds a patent for a "Frequency re-configurable orbital angular momentum (OAM) antenna in S band and frequency reconfiguration method." This invention belongs to the technical field of OAM antennas and provides a novel approach to frequency reconfiguration. The OAM antenna consists of a lower dielectric substrate and multiple array units. Each array unit includes a metal patch, an upper dielectric substrate, an outer loop, an inner loop, a coaxial feeder, four metal probes, and four diodes. The bias states of all the diodes in each array unit are controlled by applying a voltage. When all the diodes are in forward bias states, the antenna operates at a high frequency. Conversely, when all the diodes are in reverse bias states, the antenna functions at a low frequency. This innovative design allows for frequency reconfiguration and supports two OAM radiation modes, ensuring stable gain over a broadband.

Career Highlights

Yi Li is affiliated with Anhui University, where he continues to advance his research in antenna technology. His work has garnered attention for its practical applications and potential to improve communication systems.

Collaborations

Yi Li collaborates with notable colleagues, including Zhixiang Huang and Sixian Qian, who contribute to his research endeavors and enhance the scope of his projects.

Conclusion

Yi Li's innovative work in frequency re-configurable OAM antennas represents a significant advancement in antenna technology. His contributions are poised to impact various fields, particularly in communication systems.