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:
Dec. 29, 2015
Filed:
Nov. 05, 2013
Brian C. Hicks, Alexandria, VA (US);
Kenneth P. Stewart, Upper Marlboro, MD (US);
Tracy Clarke, Glenn Dale, MD (US);
Nagini P. Dalal, Torrance, CA (US);
Henrique Schmitt, Greenbelt, MD (US);
Paul S. Ray, Alexandria, VA (US);
Stephen J. Burns, Hollis, NH (US);
Namir E. Kassim, Annandale, VA (US);
Emil J. Polisensky, Alexandria, VA (US);
Norman R. Mcglothlin, Jr., Alexandria, VA (US);
Brian C. Hicks, Alexandria, VA (US);
Kenneth P. Stewart, Upper Marlboro, MD (US);
Tracy Clarke, Glenn Dale, MD (US);
Nagini P. Dalal, Torrance, CA (US);
Henrique Schmitt, Greenbelt, MD (US);
Paul S. Ray, Alexandria, VA (US);
Stephen J. Burns, Hollis, NH (US);
Namir E. Kassim, Annandale, VA (US);
Emil J. Polisensky, Alexandria, VA (US);
Norman R. Mcglothlin, Jr., Alexandria, VA (US);
The United States of America, as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An active antenna system for receiving electromagnetic radiation at frequencies below 100 MHz. The system includes a vertical support mast; a front end electronics unit including an active balun, the front end electronics unit affixed to the support mast; two crossed-dipole antennas affixed oriented at about 90 degrees to each other, each crossed-dipole antenna having two arms formed of electrically conductive material, each arm having an isoceles triangular frame with an apex of the frame electrically connected to a feedpoint of the front end electronics unit, each arm also having a longitudinal member extending from the apex to the center of the base of the triangular shape and a cross member extending between sides of the triangular frame. The system can operate independently or as part of a long wavelength array for astronomical radio telescope applications.