Whole or partial circuit protecting external shell sturcture capable of forming antenna and receiving small-portable device

Application Number: 00125981
Application Date: 2000.10.11
Publication Number: 1292583
Publication Date: 2001.04.25
Priority Information: 1999/10/11 EP 99120230.0
International: H01Q1/27;G04B47/00
Applicant(s) Name: Asulab S.A.
Inventor(s) Name: J.-F. Chichel;O. Stobou;A. Skrivervick
Patent Agency Code: 72001
Patent Agent: cui yaobeng
Abstract The present invention relates to a structure forming an antenna(10)intended for a portable unit of small volume, and including a radiating element(20)of substantially rectangular shape arranged at a determined distance from a ground plane and short-circuited with this ground plane by one(20b)of its ends(20a, 20b), the opposite end(20a)of said radiating element(20)being left free. According to the present invention, said structure(10)includes a case(11)forming an integral part of said ground plane and including at least a cover(12), a bottom(14), and a lateral wall(13b)facing which is arranged said radiating element(20), said case(11)forming a shielded housing able to accommodate an electronic circuit of the portable unit. The present invention also concerns a timepiece incorporating the aforementioned antenna structure.