Digitizer pen, input device, and operating method thereof

The present invention relates to a digitizer pen, an input device, and an operation method thereof. According to the present invention, the digitizer pen includes a body unit; and a pair of pen coil units which are included in the body unit and arranged to be adjacent to both ends of the body unit in the longitudinal direction. The digitizer pen provides an input function for objects included in an area corresponding to the longitudinal direction of the body unit when pen coil units are electromagnetically coupled to a sensor coil nearby.