Various embodiments of the present invention relate to an electronic device having antennas. The electronic device comprises: a housing at least partially comprising a conductive part; an antenna module disposed in an inner space and comprising a substrate disposed in the inner space, an array antenna disposed on the substrate and supporting a first communication mode, and two or more antennas disposed on the substrate and supporting a second communication mode; a first wireless communication circuit disposed in the inner space and configured to transmit and/or receive a wireless signal of the first communication mode by means of the array antenna; a second wireless communication circuit disposed in the inner space and configured to transmit and/or receive a wireless signal of the second communication mode by means of the two or more antennas; and a processor electrically connected to the first wireless communication circuit and second wireless communication circuit, wherein the processor can estimate the location of an external electronic device on the basis of a first signal received by means of the two or more antennas at a first point and a second signal received by means of any one antenna of the two or more antennas and the conductive part at a second point different from the first point. Other embodiments may also be possible.