Company Filing History:
2 out of 832,891 Years Active: 1989-1992
Title: Innovations by Nicholas J Cafarelli
Introduction
Nicholas J Cafarelli is an accomplished inventor based in Springfield, MA (US). He has made significant contributions to the field of antenna technology, holding 2 patents that address critical challenges in system performance.
Latest Patents
One of his latest patents is titled "Scanning antenna having multipath resistance." The objective of this invention is to reduce the adverse system performance effects resulting from antenna pattern sidelobes. It has particular application to the time reference scanning beam of the international microwave landing system (MLS), where sidelobe energy reflecting into the main beam at the receiver antenna introduces a timing measurement error. This invention also applies to systems such as height finding radar, where signals entering through antenna pattern sidelobes degrade system performance. The invention describes methods and apparatus for system performance enhancement through the application of sidelobe amplitude and phase control.
Another notable patent is "Scanning antenna having phase center diversity." The goal of this invention is to reduce the adverse effects of reflected electromagnetic radiation on the measurement threshold of a scanning beam. It is particularly relevant to the time reference scanning beam of the international microwave landing system (MLS). In the current MLS configuration, reflection-induced errors during the 'TO' scan are additive to those of the 'FRO' scan. This invention describes a method and apparatus for compensating errors by reversing the phase of the reflections during the 'FRO' scan, by displacing the phase center of the transmit antenna during that scan. System performance is enhanced through this error compensation.
Career Highlights
Nicholas has demonstrated a strong commitment to innovation in antenna technology. His work has significantly advanced the understanding and application of scanning antennas in various systems.
Collaborations
Nicholas collaborates with Glen D Adams, contributing to the development of innovative solutions in their field.
Conclusion
Nicholas J Cafarelli's contributions to antenna technology through his patents reflect his dedication to enhancing system performance. His innovative approaches address critical challenges in the field, making a lasting impact on technology.