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:
May. 25, 2004
Filed:
Nov. 13, 2001
Applicant:
Inventor:
Jinichi Inoue, Koga, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 2/126 ;
U.S. Cl.
CPC ...
H01Q 2/126 ;
Abstract
A first dipole antenna consisting of dipole antennae and a second dipole antenna consisting of dipole antennae are disposed so as to be approximately orthogonal at approximately &lgr;/4 intervals on a reflecting plate having a diameter of approximately &lgr;/2 or more. By disposing a plurality of non-feeding elements to around the first dipole antenna and second dipole antenna and isolating them by approximately &lgr;/4, the transmission gain and axial ratio in a low elevation angle can be improved.