Provided is an electronic device having an antenna according to the present invention. The electronic device comprises a cone antenna comprising: a cone radiator which is provided between a first substrate and a second substrate, has the upper part connected to the first substrate and the lower part connected to the second substrate, and has an opening on the upper part; a metal patch which is formed on the first substrate and is positioned away from the upper opening; a shorting pin which is for electrically connecting the metal patch and a ground layer of the second substrate; a power feeding unit which is formed on the second substrate and is for transmitting a signal via a lower opening; and a dielectric which is formed in a cylindrical shape so as to surround the lower opening.