APPARATUS FOR HARVESTING FROM ELECTROMAGNETIC FIELD

摘要

PURPOSE: An energy obtaining apparatus is provided to obtain necessary electricity without additional exposure of electro-magnetic waves to a human body or around the human body. CONSTITUTION: An interface unit(120) obtains a signal induced in a human body(100). The human body has high dielectric permittivity in a low frequency band. A rectifier circuit(130) rectifies an AC signal inputted in the interface unit and changes the AC signal into DC power supply. A filter(140) is installed in the front end of the interface unit and filters the AC signal inputted from the interface unit. The filter comprises one or more filters among a low band passing filter, a band passing filter, and a high band passing filter. An antenna unit receives electro-magnetic waves generated in electronic equipment.