Company Filing History:
Years Active: 2000
Title: Bruce J. Liban: Innovator in Antenna Technology
Introduction
Bruce J. Liban is a notable inventor based in Philadelphia, PA, who has made significant contributions to the field of antenna technology. With a total of 2 patents to his name, Liban's work focuses on innovative antenna systems that enhance signal transmission and reception.
Latest Patents
Among his latest patents is the "Azimuth Steerable Antenna." This antenna system features a plurality of elements, including an active element for transmitting or receiving signals, while the remaining elements serve as reflectors. The design incorporates a series of diodes connected in series with conductors that are a fraction of the wavelength of the design frequency. When the diodes are biased for conduction, the element can radiate or receive radio frequency (r.f.) signals or act as a reflector. Conversely, when the diodes are not conducting, the element becomes transparent to r.f. signals of the design frequency.
Another significant patent is the "Simplified Stacked Dipole Antenna." This antenna array includes a feed line formed by metal patterns on opposite sides of a circuit board. It features a plurality of pairs of adjoining quarter-wave resonant sections created by different widths of the patterns, with dipoles coupled to the junctions of these sections. The proximity between dipole elements and the feed line is designed to enable a nearly symmetric azimuthal antenna beam pattern. Each dipole utilizes capacitive compensation at its center to balance the capacitive loading with the closely spaced feed line.
Career Highlights
Bruce J. Liban is currently employed by the U.S. Government as represented by the Secretary of the Army. His work in this capacity has allowed him to develop and refine his innovative antenna technologies, contributing to advancements in military and civilian communication systems.
Collaborations
One of his notable collaborators is Thomas E. Koscica, with whom he has worked on various projects related to antenna technology.
Conclusion
Bruce J. Liban's contributions to antenna technology through his patents and work with the U.S. Government highlight his role as an influential inventor in the field. His innovative designs continue to impact communication systems significantly.