Company Filing History:
Years Active: 1976-1988
Title: L James Larsen: Innovator in Antenna Technology
Introduction
L James Larsen is a notable inventor based in Vancouver, WA (US). He has made significant contributions to the field of antenna technology, holding 2 patents that showcase his innovative spirit and technical expertise.
Latest Patents
Larsen's latest patents include a mobile antenna and a through-the-glass impedance matched feed system. This invention is designed to be moisture-insensitive and effectively couples radio frequency energy at a low impedance from a matched two-conductor transmission line through a vehicle windshield. The system minimizes stray radio frequency radiation within the passenger compartment of the vehicle. It features two pairs of conducting plates mounted on each side of the windshield, with a coaxial feed line connected to the inside pair of plates. A matching circuit is linked across the outside pair, allowing for efficient RF energy coupling. The design aims to reduce parasitic coupling to moisture and other foreign bodies, ensuring optimal performance.
Another patent by Larsen is an antenna mount for vehicles. This mount includes an insulated base with an internally threaded sleeve and a blind-type clamping assembly that anchors the base to a vehicle's body panel. The clamping assembly is designed for easy installation, featuring a clamp member with a threaded stud and an oblong clamping flange. This innovative design allows for the flange to fit through smaller installation holes, facilitating a secure attachment to the vehicle.
Career Highlights
Larsen is associated with Larsen Electronics, Inc., where he continues to develop and refine his inventions. His work has significantly impacted the field of antenna technology, particularly in applications related to vehicles.
Collaborations
Larsen collaborates with David M Phemister, contributing to the advancement of their projects and innovations.
Conclusion
L James Larsen's contributions to antenna technology through his innovative patents demonstrate his commitment to enhancing communication systems in vehicles. His work continues to influence the industry and pave the way for future advancements.