Location History:
- Ithaca, NY (US) (2016)
- Cambridge, MA (US) (2020 - 2021)
- Winchester, MA (US) (2020 - 2022)
Company Filing History:
5 out of 8,373 
2 out of 1,361 
1 out of 16,080 Years Active: 2016-2024
Title: The Innovative Contributions of Ruonan Han
Introduction
Ruonan Han is a prominent inventor based in Winchester, MA (US), known for his significant contributions to the field of technology and engineering. With a total of 8 patents to his name, Han has made remarkable strides in the development of advanced systems and devices.
Latest Patents
One of Han's latest patents focuses on "Localizing, waking-up, and estimating direction of femto-satellites." Femto-satellites are extremely small satellites that can be deployed in constellations from a larger mothership satellite for distributed measurement. These satellites are too small to accommodate GNSS receivers, but they can be located using an electromagnetic beam from the mothership satellite. The mothership scans this beam across the constellation, allowing femto-satellites to transmit acknowledgments and receive commands for measurements or data transmission. This innovative approach enhances the capabilities of satellite navigation and communication.
Another notable patent is the "Integrated circuit-to-waveguide slot array coupler." This coupler consists of a silicon substrate with double slot radiators designed to transmit or receive RF signals. It includes a slot balun circuit for signal isolation and a grounded coplanar waveguide for horizontal signal propagation. This technology can be integrated into chips positioned over waveguides, optimizing RF signal transmission.
Career Highlights
Ruonan Han has worked at prestigious institutions such as the Massachusetts Institute of Technology and Cornell University. His experience at these renowned organizations has contributed to his expertise and innovative thinking in the field.
Collaborations
Han has collaborated with notable colleagues, including Cheng Wang and Ehsan Afshari, further enhancing his research and development efforts.
Conclusion
Ruonan Han's contributions to technology through his patents and collaborations highlight his role as a leading inventor in the field. His work continues to influence advancements in satellite technology and integrated circuits.