Wireless power transfer antenna core and wireless power transfer module including same

A wireless power transfer system comprising a wireless power receiving module and a wireless power transmitting module,

• wherein the wireless power receiving module comprises a first wireless power transfer antenna core in which a first conductive member configured to serve as an antenna for receiving wireless power is wound multiple times along a longitudinal direction of the first wireless power transfer antenna core,
• wherein the wireless power transmitting module comprises a second wireless power transfer antenna core in which a second conductive member configured to serve as an antenna for transmitting wireless power is wound multiple times along a longitudinal direction of the second wireless power transfer antenna core,
• wherein the first wireless power transfer antenna core and the second wireless power transfer antenna core each comprise:
• a first portion having a first cross-sectional area;
• and
• a second portion extending with a predetermined length from an end portion of the first portion and a second cross-sectional area that is relatively larger than the first cross-sectional area,
• wherein the first wireless power transfer antenna core and the second wireless power transfer antenna core are each made of a magnetic body having a predetermined length,
• wherein the first conductive member and the second conductive member are wound multiple times on the first portion,
• wherein the first wireless power transfer antenna core and the second wireless power transfer antenna core are arranged in parallel to each other along the longitudinal direction of the first wireless power transfer antenna core, and
• wherein the first conductive member and the second conductive member are configured to generate magnetic resonance.