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:
Feb. 01, 2005
Filed:
Dec. 14, 2001
Nicholas A. Schuneman, Dallas, TX (US);
James M. Irion Ii, Plano, TX (US);
Richard E. Hodges, Corona, CA (US);
Nicholas A. Schuneman, Dallas, TX (US);
James M. Irion II, Plano, TX (US);
Richard E. Hodges, Corona, CA (US);
Raytheon Company, Waltham, MA (US);
Abstract
An antenna apparatus () includes an antenna element () that has conductive material with a recess therein. The recess includes a balun hole (), and a tapered slot () communicating at its narrow end with the balun hole. The balun hole is approximately rectangular, has a peripheral edge defined by conductive material, and contains air. The tapered slot has a shape which is optimized as a function of factors that include the balun hole design. Each slot edge follows a predetermined curve other than a first-order exponential curve.