The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 26, 2018
Filed:
Aug. 29, 2014
Thomas O. Jones, Iii, San Diego, CA (US);
Thomas O. Jones, III, San Diego, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An antenna array comprising: four dipole antennas configured to function together as a directional, near vertical incidence skywave (NVIS) antenna with reduced side lobes, wherein each dipole antenna comprises two conductive elements and a feed point disposed between the two conductive elements, wherein the conductive elements of each of the four dipole antennas are disposed in an x-y plane of an x-y-z mutually orthogonal axes coordinate system, and wherein the conductive elements are substantially parallel with the x-axis and the x-y plane is substantially parallel with a ground plane; and wherein the feed points of the four dipole antennas are positioned on the x-y plane at approximately (x, 0), (−x, 0), (0, y), and (0, −y), and wherein the x-y plane is separated from the ground plane by a distance h that is less than or equal to 1/10 the wavelength (λ) of an operating frequency.