Disclosed is an electronic device. The electronic device comprises a housing forming an exterior of the electronic device, and including a front surface, a back surface facing away from the front surface, and a side surface substantially perpendicular to the front surface and the back surface; a first conductive plate positioned towards the back surface having a first antenna array disposed on the first conductive plate, the first antenna array configured to radiate a signal in a first frequency band toward the back surface; a second antenna array connected to the conductive plate, the second antenna array configured to radiate a signal in a second frequency band at least partially different from the first frequency band toward the side surface, and having an antenna element at least partially different from the first antenna array, a second conductive plate positioned towards the side surface having a third antenna array disposed on the second conductive plate, the third antenna array configured to radiate the signal in the second frequency band toward the side surface, and a fourth antenna array connected to the second conductive plate and configured to radiate the signal in the first frequency band toward the back surface.