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:
Jul. 19, 2016
Filed:
Oct. 27, 2011
Francois Grange, Moirans, FR;
Christophe Delaveaud, Moirans, FR;
Bernard Viala, Sassenage, FR;
Abstract
An artificial magnetic conductor having a surface impedance greater than 100Ω, includes a ground plane, and a frequency-selective surface that is transparent for certain wavelengths and reflective for a range of wavelengths. The frequency-selective surface includes an array of conductive resonant elements arranged alongside one another in at least two different directions parallel to the ground plane. Each of these conductive resonant elements includes a sub-layer of ferromagnetic material having a relative permeability greater than 10 at a frequency of 2 GHz and having a thickness less than the skin thickness of the ferromagnetic material.