A strip-shaped or plate-shaped composite metal object and a method for the production thereof. The improved cell design facilitates the formation of capacitors using a single etch process instead of two, as conventionally required. Through enabling the MUD loggers to communicate, the MUD loggers may update their respective MUD logs. At least a portion of a top surface of the resistive element is in thermally conductive contact with the heat sink. The antenna device has an overall sheet-like shape.