Radio frequency signal control system for a household electrical appliance, comprising a printed circuit board coupler

Abstract

The invention relates to a radio frequency signal control system for a domestic electrical appliance (2) controlled by a management unit (3), the system comprising: - a radio frequency signal coupler (10), comprising a line segment (13a) printed on a printed circuit board (9) having a free end (13b) and being connected in parallel with a transmission line (13) printed on the printed circuit board (9) the first end of which is connected to an electrical conductor (5), the coupler (10) comprising at least one coupling line (15a) a part of which extends without electrical contact, parallel to the line segment (13a);- a radio frequency unit (7) for transmitting and / or receiving radio frequency signals comprising an input and / or output (Sa) of radio frequency signals electrically connected to the coupler, - a radio frequency signal blocking circuit (12), printed on the printed circuit board and connected at one end to the transmission line (13).