Aerosol generating device and aerosol generating system including the same

An aerosol generation system comprising:

• an aerosol generating article;
• and
• an aerosol generating device configured to heat the aerosol generating article inserted into an accommodation space of the aerosol generating device,
• wherein the aerosol generating article includes a first susceptor arranged in a first portion and a second susceptor arranged in a second portion different from the first portion,
• the aerosol generating device includes a first coil arranged in a first region of the accommodation space, a second coil arranged in a second region of the accommodation space, wherein the second region is different from the first region, and a controller configured to control power supplied to the first coil and the second coil,
• an average thickness of the first susceptor is greater than an average thickness of the second susceptor,
• the controller is further configured to drive the first coil within a first frequency range in a first period and drive the second coil within a second frequency range in a second period, and
• a lower limit of the second frequency range is greater than an upper limit of the first frequency range.