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:
Jun. 07, 2005
Filed:
Dec. 21, 2001
Olov Edvardsson, Täby, SE;
Olov Edvardsson, Täby, SE;
AMC Centurion AB, Akersberga, SE;
Abstract
An antenna device is adapted for use in at least two frequency bands, wherein the mean wave length of the higher of said frequency bands is λ. The antenna device comprises an antenna element in the form of a reed () mounted on a conductive support structure () having a projected area of less than λ. The reed comprises a feeding portion () connectable to a feed device () and at least one impedance is connected between the reed and the conductive support. Also, the phase difference of transmitted and/or received signal waves within said at least two frequency bands over the reed is less than 120° in order to increase radiation con-ductance. A multi-band antenna device with a relatively wide upper frequency band is thereby provided.