Patents by Inventor Stefan T. Stefanov

Stefan T. Stefanov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Collinear dipole array with inductive and capacitive phasing
    Patent number: 4872021
    Abstract: The antenna represents colinearly arranged half-wave dipoles. On the side of each final half-wave dipole is a quarter-wave dipole. The connection between the dipoles is alternately capacitive and inductive each providing a phase shift within the range of from 60 to 120 electrical degrees. The terminal of the antenna is asymmetrically deduced from the free end of one of the final half-wave dipoles and the adjacent end of the nearby quarter-wave dipole. This antenna can be used in reception and transmission of electromagnetic energy and shows a considerably increased gain.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: October 3, 1989
    Assignee: "MIRTA"
    Inventors: Mirtcho S. Tabakov, Nedyalko K. Nedyalkov, Stefan T. Stefanov