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:
Mar. 17, 2009
Filed:
Nov. 28, 2005
Tomoya Nakanishi, Osaka, JP;
Hiroyuki Uno, Ishikawa, JP;
Yutaka Saito, Ishikawa, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An antenna apparatus capable of main beam direction switching is provided that achieves high gain with a small, planar configuration. Rhombic antenna sections composed of linear elementsthroughthrough, andthroughare arranged in the same plane, and the rhombic antenna sections are connected by linear linking elementsthrough. Linear detour elementsandare connected to the pair of vertices of the rhombic antenna sections arranged at each end. Feed pointsandare provided at the other opposite two pairs of vertices of any of the rhombic antenna sections, and the opposite vertices of the other rhombic antenna sections are connected by linear elements. A plate reflector is arranged at a distance h from, and parallel to, the surface on which the rhombic antenna elements are arranged.