Location History:
- Warwick, RI (US) (2019 - 2020)
- Alexandria, VA (US) (2020)
- Fairfax, VA (US) (2022 - 2023)
Company Filing History:
6 out of 16,083 
2 out of 1,553 
Years Active: 2019-2023
Title: John T Logan: Innovator in Phased Array Technology
Introduction
John T Logan is a notable inventor based in Alexandria, VA (US), recognized for his contributions to advanced antenna technologies. With a total of 7 patents, Logan has made significant strides in the field of broadband operations and phased array systems.
Latest Patents
Logan's latest patents include innovative designs such as the "Broadband operation notched active phased array radiator with treated edges." This patent presents systems and methods that enable a notch-based element to maintain traditional notch ultra wideband (UWB) performance while offering a highly-producible and scalable structure. The design features high power handling, a simple single-ended 50-ohm feeding, and relative insensitivity to a conductive back-plate. Additionally, embodiments of this patent improve upon traditional notch structures by providing shorter element depth, lighter weight, and modularized assembly.
Another significant patent is focused on "Conformal phased arrays." This invention directs configurations of antenna elements for conformal phased arrays, such as circular or cylindrical designs, to support either omnidirectional or directional high-gain beams. The antenna elements are strategically spaced about a circle or cylinder, with vertical and circumferential element spacing based on the wavelength of the operational frequency. This configuration allows for easy scaling to different frequency bands and a straightforward extension from single-linear to dual-linear polarization. Furthermore, the antenna elements can be integrated into one structure or multiple modular structures.
Career Highlights
Throughout his career, John T Logan has worked with esteemed organizations, including the United States Navy and the University of Massachusetts. His work has significantly impacted the development of advanced antenna technologies.
Collaborations
Logan has collaborated with notable professionals in his field, including Rick Kindt and Marinos N Vouvakis. Their combined expertise has contributed to the advancement of innovative technologies in phased array systems.
Conclusion
John T Logan's contributions to the field of antenna technology through his patents and collaborations highlight his role as a leading innovator. His work continues to influence advancements in broadband operations and phased array systems.