An electronic device includes: a body; a circuit board disposed in the body; and an antenna device mounted to one region of the body, and having first and second antenna units spaced apart from each other by a specific interval, in order to transceive a radio signal at a specific frequency band, wherein each of the first and second antenna units includes: a dielectric substance disposed to form a gap with the circuit board; an antenna chip disposed at the circuit board; and a pair of feeding portions for connecting the antenna chip with the dielectric substance.