An electronic device comprising: a housing comprising a first plate, and a second plate facing away from the first plate; a display configured to be viewable through a portion of the first plate and positioned in the housing; and an antenna structure positioned in the housing, wherein the antenna structure comprises: a first printed circuit board, PCB, including a first surface facing a first direction, a second PCB including a second surface facing a second direction different from the first direction, a flexible PCB, FPCB, extended between a first periphery of the first PCB and a second periphery of the second PCB, at least one first conductive pattern formed in the first PCB or on the first surface, at least one second conductive pattern formed in the second PCB or on the second surface, at least one wireless communication circuit mounted on at least one of the first PCB or the second PCB, and configured to transmit or receive a signal having a frequency between 3 GHz and 100 GHz, at least one conductive line electrically connecting the at least one wireless communication circuit and one of the first conductive pattern or the second conductive pattern and disposed in the FPCB, and at least one third conductive pattern disposed in the FPCB and electrically connected with the at least one wireless communication circuit, characterized in that the at least one first conductive pattern and the at least one second conductive pattern each comprise at least one patch antenna element, and wherein the at least one third conductive pattern comprises at least one dipole antenna or at least one patch antenna. a housing comprising a first plate, and a second plate facing away from the first plate; a display configured to be viewable through a portion of the first plate and positioned in the housing; and an antenna structure positioned in the housing, wherein the antenna structure comprises: a first printed circuit board, PCB, including a first surface facing a first direction, a second PCB including a second surface facing a second direction different from the first direction, a flexible PCB, FPCB, extended between a first periphery of the first PCB and a second periphery of the second PCB, at least one first conductive pattern formed in the first PCB or on the first surface, at least one second conductive pattern formed in the second PCB or on the second surface, at least one wireless communication circuit mounted on at least one of the first PCB or the second PCB, and configured to transmit or receive a signal having a frequency between 3 GHz and 100 GHz, at least one conductive line electrically connecting the at least one wireless communication circuit and one of the first conductive pattern or the second conductive pattern and disposed in the FPCB, and at least one third conductive pattern disposed in the FPCB and electrically connected with the at least one wireless communication circuit, characterized in that the at least one first conductive pattern and the at least one second conductive pattern each comprise at least one patch antenna element, and wherein the at least one third conductive pattern comprises at least one dipole antenna or at least one patch antenna. a first printed circuit board, PCB, including a first surface facing a first direction, a second PCB including a second surface facing a second direction different from the first direction, a flexible PCB, FPCB, extended between a first periphery of the first PCB and a second periphery of the second PCB, at least one first conductive pattern formed in the first PCB or on the first surface, at least one second conductive pattern formed in the second PCB or on the second surface, at least one wireless communication circuit mounted on at least one of the first PCB or the second PCB, and configured to transmit or receive a signal having a frequency between 3 GHz and 100 GHz, at least one conductive line electrically connecting the at least one wireless communication circuit and one of the first conductive pattern or the second conductive pattern and disposed in the FPCB, and at least one third conductive pattern disposed in the FPCB and electrically connected with the at least one wireless communication circuit, characterized in that the at least one first conductive pattern and the at least one second conductive pattern each comprise at least one patch antenna element, and wherein the at least one third conductive pattern comprises at least one dipole antenna or at least one patch antenna.