An antenna module in which an antenna coil formed of a metal foil and a condenser are formed on an insulating substrate, the antenna module includes: a control circuit configured to control communications done by the antenna coil, the control circuit disposed on the insulating substrate; and a pattern formed of a metal foil, wherein the pattern is formed on the insulating substrate on the opposite side of the control circuit through the insulating substrate, and the control circuit has: a detecting means for detecting a temperature of the control circuit, and a control means for terminating the communications when a temperature of the control circuit is equal to or above a predetermined temperature.