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:
Nov. 12, 2002
Filed:
Jan. 11, 2001
Kazem F. Sabet, Ann Arbor, MI (US);
Kamal Sarabandi, Ann Arbor, MI (US);
Linda P. B. Katehi, Northville, MI (US);
Panayiotis Frantzis, Ann Arbor, MI (US);
EMAG Technologies, LLC, Ann Arbor, MI (US);
Abstract
An omni-directional printed antenna that includes at least two wound slot antenna elements. The spacing between the elements, the lengths of the elements and the feed location of the elements are selected to provide a desirable electromagnetic coupling between the elements that causes the narrow bandwidth of the individual elements to combine into a wide bandwidth while providing an omni-directional radiation pattern. Winding the elements together in this manner also allows different antennas for different frequency bands to be combined as a single antenna in a small space. Further, the printed antenna can be patterned on a copper tape to create a sticker type antenna that can be readily mounted on different surfaces.