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:
Apr. 17, 2007
Filed:
Sep. 12, 2003
Richard T. Knadle, Jr., Dix Hills, NY (US);
Mark William Duron, East Patchogue, NY (US);
Hal Charych, Poquott, NY (US);
Henry Grossfeld, Great Neck, NY (US);
Raj Bridgelall, Morgan Hill, CA (US);
Richard T. Knadle, Jr., Dix Hills, NY (US);
Mark William Duron, East Patchogue, NY (US);
Hal Charych, Poquott, NY (US);
Henry Grossfeld, Great Neck, NY (US);
Raj Bridgelall, Morgan Hill, CA (US);
Symbol Technologies, Inc., Holtsville, NY (US);
Abstract
A directional antenna array is provided that includes a driven element and a first parasitic element separated from the driven element with the first parasitic element and/or the driven element having a width that is greater than about one-half a percent (0.5%) of an free-space wavelength of the directional antenna array. Alternatively or in conjunction, the directional antenna array includes a balun structure that is configured to couple the driven element to at least one of an electromagnetic energy source and an electromagnetic sink, and the balun structure includes a dipole structure, a first feed point extending from the dipole structure and a second feed point extending from the first parasitic element.