Company Filing History:
Years Active: 2007-2009
Title: Juha Salmivaara: Innovator in Radar Technology
Introduction
Juha Salmivaara is a notable inventor based in Kerava, Finland. He has made significant contributions to the field of radar technology, holding 2 patents that showcase his innovative approach to solving complex problems in this domain.
Latest Patents
Salmivaara's latest patents include a "Simultaneous Dual Polarization Radar System with Pedestal Mounted Receiver." This invention relates to a method and apparatus for the simultaneous transmission of horizontal (H) and vertical (V) channels in a dual polarized weather radar. The goal of this invention is achieved by strategically placing the receiver, duplexer, and polarizer equipment above the azimuth rotary joint but below the elevation rotary joints. The calibration of the elevation rotary joints and associated signal paths is accomplished using a low power signal on the radar's operating frequency, which is fed into couplers above the elevation rotary joints.
Another significant patent is the "Method and Apparatus for Pointing the Beam of a Wind Profiler." This invention involves a method and apparatus for directing the beams of a wind profiler, which comprises a stationary antenna matrix with several individual antenna elements. The method includes feeding an input signal to the antenna matrix and adjusting the phase of the input signal for the individual antenna elements to accurately point the beam of the profiler. The invention utilizes separate feeder lines for each beam to feed signals to the antenna elements, with phase differences controlled by hybrid coupler elements.
Career Highlights
Juha Salmivaara is currently employed at Vaisala Oyj, a company known for its expertise in environmental and industrial measurement. His work at Vaisala has allowed him to apply his innovative ideas in practical applications, contributing to advancements in radar technology.
Collaborations
Throughout his career, Salmivaara has collaborated with notable colleagues, including Petri Haapanen and Pentti Karhunen. These collaborations have further enriched his work and led to the development of cutting-edge technologies in the field.
Conclusion
Juha Salmivaara's contributions to radar technology through his patents and work at Vaisala Oyj highlight his role as an influential inventor. His innovative methods and apparatuses continue to advance the field, showcasing the importance of creativity in technological development.