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. 16, 2009
Filed:
Aug. 29, 2006
William C. Jennings, Iowa City, IA (US);
William C. Jennings, Iowa City, IA (US);
Rockwell Collins, Inc., Cedar Rapids, IA (US);
Abstract
A radio direction finding antenna is disclosed. A dielectric material is configured to rotate about an axis of rotation. The dielectric material has a first conductive surface. A radiating element or array of radiating elements are disposed within the dielectric material and are electrically isolated from the first conductive surface. The radiating element or array of radiating elements are positioned a distance away from the axis of rotation and are configured to be resonant at a predetermined frequency in the case of a single radiating element or various frequencies in the case of an array of radiating elements. Rotation of the dielectric material and radiating element or array of elements about the axis of rotation causes a Doppler effect in signals received by the radiating element or array of elements. An artillery fuse incorporating the radio direction finding antenna is also disclosed.