An electronic device comprising: a patch antenna including a first conductive plate and a second conductive plate , the second conductive plate spaced from the first conductive plate and disposed parallel to the first conductive plate ; a dipole antenna including conductive elements disposed in a space between the first conductive plate and the second conductive plate ; a wireless communication circuit electrically connected with the first conductive plate and at least one of the conductive elements ; a first feed line electrically connected with a first feed part included in the first conductive plate and extending from the wireless communication circuit to the first feed part through a cavity ; and a printed circuit board coupled with at least one side of the first conductive plate , at least one side of the second conductive plate , and one end of the conductive elements , wherein the second conductive plate is electrically connected to a ground region of the printed circuit board , and wherein the wireless communication circuit is configured to: transmit/receive a first radio frequency, RF, (RF) signal having a vertical polarization characteristic using the first conductive plate and the second conductive plate and transmit/receive a second RF signal having a horizontal polarization characteristic using the conductive elements , wherein the printed circuit board includes the cavity comprising a transverse length (w), a longitudinal length (h), and a height length (t), wherein the transverse length, the longitudinal length and the height length are configured to provide impedance matching between the first conductive plate and the wireless communication circuit . a patch antenna including a first conductive plate and a second conductive plate , the second conductive plate spaced from the first conductive plate and disposed parallel to the first conductive plate ; a dipole antenna including conductive elements disposed in a space between the first conductive plate and the second conductive plate ; a wireless communication circuit electrically connected with the first conductive plate and at least one of the conductive elements ; a first feed line electrically connected with a first feed part included in the first conductive plate and extending from the wireless communication circuit to the first feed part through a cavity ; and a printed circuit board coupled with at least one side of the first conductive plate , at least one side of the second conductive plate , and one end of the conductive elements , wherein the second conductive plate is electrically connected to a ground region of the printed circuit board , and wherein the wireless communication circuit is configured to: transmit/receive a first radio frequency, RF, (RF) signal having a vertical polarization characteristic using the first conductive plate and the second conductive plate and transmit/receive a second RF signal having a horizontal polarization characteristic using the conductive elements , wherein the printed circuit board includes the cavity comprising a transverse length (w), a longitudinal length (h), and a height length (t), wherein the transverse length, the longitudinal length and the height length are configured to provide impedance matching between the first conductive plate and the wireless communication circuit . <EOS>