Location History:
- Quincy, IL (US) (1978 - 1985)
- Cincinnati, OH (US) (2005 - 2015)
Company Filing History:
7 out of 3,523 
1 out of 9 
1 out of 78 
Years Active: 1978-2015
Title: Innovations of Geoffrey Norman Mendenhall
Introduction
Geoffrey Norman Mendenhall is a notable inventor based in Cincinnati, OH. He holds a total of 9 patents that showcase his contributions to the field of antenna technology and RF systems. His work has significantly impacted the way antennas operate and interact with RF amplifying systems.
Latest Patents
One of Mendenhall's latest patents is focused on the operation of an antenna on a second, higher frequency. This patent describes systems and methods for utilizing an existing antenna at a higher frequency, enhancing its functionality. The antenna system includes an antenna feed and a first antenna assembly, which is electrically connected to the feed. The first assembly has a specific electrical length for a designated frequency band and features a linear segment. Additionally, a second antenna element is connected to the first assembly, extending in a direction parallel to the linear segment, with an electrical length corresponding to a quarter wavelength of the second frequency.
Another significant patent by Mendenhall is a resonator system for an RF power amplifier output circuit. This system includes first and second cavity resonators designed for use in an RF amplifying system. The resonators are strategically placed between the output terminal of the RF amplifier and the broadcasting antenna. The first resonator consists of a transmission line made of two coaxial conductors, tuned to the third harmonic of the operating frequency. Each resonator has distinct ends, with the first end being open and the second end shorted, facilitating efficient signal transmission.
Career Highlights
Throughout his career, Mendenhall has worked with prominent companies such as Harris Corporation and Broadcast Electronics, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in antenna technology and RF systems.
Collaborations
Mendenhall has collaborated with notable professionals in his field, including Mukunda B. Shrestha and Jay C. Adrick. These collaborations have contributed to the advancement of technology in the areas he specializes in.
Conclusion
Geoffrey Norman Mendenhall's contributions to antenna technology and RF systems are significant, with a total of 9 patents to his name. His innovative work continues to influence the industry and enhance communication technologies.