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. 15, 2005
Filed:
Apr. 17, 2003
Applicants:
B. Rama Rao, Lexington, MA (US);
Michael Smolinski, Lowell, MA (US);
Cuong Quach, Nashua, NH (US);
Eddie N. Rosario, Methuen, MA (US);
Inventors:
B. Rama Rao, Lexington, MA (US);
Michael Smolinski, Lowell, MA (US);
Cuong Quach, Nashua, NH (US);
Eddie N. Rosario, Methuen, MA (US);
Assignee:
The Mitre Corporation, McLean, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q001/24 ;
U.S. Cl.
CPC ...
Abstract
The antenna includes four elements excited with equal amplitudes but with a relative phase difference of 0°, −90°, −180°, and −270°. Each element includes a vertical and horizontal portion. An RF trap filter is located within the horizontal portion so that the antenna provides good gain coverage at all three frequency bands of a modernized global positioning system.