Indicator circuit decoupled from a ground plane

An indicator circuit comprising:

• a cylindrical battery, the cylindrical battery comprising a positive terminal and a negative terminal;
• a two symmetrical loop antenna that is out-of-phase, the antenna comprising at least one antenna trace, a first antenna terminal, and a second antenna terminal, wherein the antenna is wrapped around the cylindrical battery;
• a decoupler component, the decoupler component comprising a first decoupler component terminal and a second decoupler component terminal;
• and
• an integrated circuit;
• wherein the integrated circuit is electrically coupled to the first antenna terminal and the second antenna terminal;
• the integrated circuit is electrically coupled to the positive terminal of the cylindrical battery;
• the integrated circuit is electrically coupled to the first decoupler component terminal;
• and the second decoupler component terminal is electrically connected to the negative terminal of the cylindrical battery.