Antenna bracelet for a radio receiver incorporated in a watch

Abstract

Abstract Antenna bracelet for a radio receiver incorporated in a watch formed of a case (11) containing the said receiver (14) and of a bracelet (12, 17), the bottom (23) of the case (11) comprising a first metal part (15) which forms the earth for the receiver, characterised in that it includes at least a first metal conductor (16) arranged inside the bracelet in proximity to the outer surface (17) of the bracelet on the upper side (18) of the watch case, connected to the input of the said receiver, and having the shape of a wire twisting between the two side walls (20, 21) of the bracelet, the unfolded length of this conductor being around lambda /4, lambda being the wavelength corresponding to the central frequency of the signal to be received. <IMAGE>

Inventors

• 👤 José Baro

Bibliographic Details