Metal container e.g. for liquid or gases, has antenna formed by narrow, long perforation in outer wall of metal molding

摘要

A metal container has an antenna designed for electromagnetic oscillation in a perforation in resonance in the outer wall (11). The antenna is formed by a narrow, long perforation (12) in the outer wall of a metal molding fabricated on the container. The longitudinal edges of the perforation (12) are fabricated as concentric circular segments.