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. 14, 2004
Filed:
Jun. 20, 2003
Griffin K. Gothard, Satellite Beach, FL (US);
Jay A. Kralovec, Melbourne, FL (US);
Timothy E. Durham, Palm Bay, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
Method and apparatus for feeding a compact main reflector of an RF antenna on a plurality of spectrally offset frequency bands. The method can include the steps of forming a focal ring for a main reflector ( ) by positioning an RF source ( ) at a first frequency within a first frequency band in the far field relative to a shaped non-linear surface of revolution so that the shaped non-linear surface of revolution forms a subreflector ( ). A second focal ring can be formed for the main reflector ( ) by positioning a second RF source ( ) in the nearfield of the shaped non-linear surface of revolution.