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. 25, 2003
Filed:
Oct. 03, 2001
Applicant:
Inventors:
Kazuo Masuda, Kanagawa-ken, JP;
Akihisa Sakurai, Kanagawa-ken, JP;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/310 ;
U.S. Cl.
CPC ...
H01Q 1/310 ;
Abstract
An aperture antenna is provided so that it is capable of matching with a standardized coaxial cable without employing any matching circuit. The aperture antenna includes a first flat electric conductor with an aperture in which a second aperture length in a second direction perpendicular to a first direction is greater than a first aperture length in the first direction. A second electric conductor, spaced from the first electric conductor is disposed inside the aperture in practically the same plane with the first electric conductor. Further included is a non-balance type transmission line.