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:
Oct. 07, 2008
Filed:
Aug. 02, 2007
Patrice Brachat, Nice, FR;
Philippe Ratajczak, Nice, FR;
Frédéric Devillers, Nice, FR;
France Telecom, Paris, FR;
Abstract
The invention relates to a printed antenna comprising a dielectric substrate (CS, CS) supporting feeder lines (LA, LA) and first and second T-shaped dipoles (D, D) of different sizes for dual-band operation. Each dipole includes a stem (J, J) and two radiating arms (B, B) separated by a coupling slot (FC, FC) made in the stem. For compactness of the antenna, the stems are partly superimposed, the coupling slots are aligned and a decoupling cut-out (ED) is made in the second dipole so as to uncover the coupling slot of the first dipole, by virtue of their superposition. The substrate can comprise one, two or three layers. Plural antennas can constitute an antenna network used as a base element in one-dimensional or two-dimensional network.