Antenna system for lock cylinder in mortice lock utilized for door furniture of building, has minus-ground surface provided inside electrically insulated container that is form-fittingly connected with housing that serves as counterweight

摘要

The system has a cylinder profile, a rotatable cylinder core and/or a lock bit (D) that are utilized as an active antenna pole. A minus-ground surface is provided inside an electrically insulated container which is form-fittingly connected with a cylinder housing that serves as a counterweight for electromagnetic wave propagation. The minus-ground surface has a selectively metallized plate (E) and/or a metal body and/or a metallized body that are made of plastic or ceramic and/or of glass with an electrically conductive coating.