A radio wave radiating device, comprising: a radio wave supply unit (411, 511, 611, 711) extending in one direction and having one end thereof electrically connectable to an external power source; an earth part (412, 512, 612, 712) disposed to be spaced apart from the radio wave supply unit (411, 511, 611, 711) by a predetermined distance in a direction intersecting with the one direction, extending in the one direction, and having one end thereof electrically connected to a ground; and a radiating element electrically connected to another end of the radio wave supply unit (411, 511, 611, 711) and another end of the earth part (412, 512, 612, 712), respectively, and configured to radiate radio wave received from the radio wave supply unit (411, 511, 611, 711), characterized in that the radiating element comprises: a middle portion (430, 530, 630, 730) connecting between the radio wave supply unit (411, 511, 611, 711) and the earth part (412, 512, 612, 712); a first radiating portion (440, 540, 640) extending from the middle portion (430, 530, 630, 730) connected to the earth part (412, 512, 612, 712), in a direction away from the earth part (412, 512, 612, 712); and a second radiating portion (450, 550, 650) extending from one end of the middle portion (430, 530, 630, 730) connected to the radio wave supply unit (411, 511, 611, 711), in a direction away from the radio wave supply unit (411, 511, 611, 711), and wherein the middle portion (430, 530, 630, 730) is formed in a curved shape extending in a direction intersecting with a virtual line connecting between the another end of the radio wave supply unit (411, 511, 611, 711) and the another end of the earth part (412, 512, 612, 712) with a shortest distance; or wherein the middle portion (430, 530, 630, 730) comprises a bending pattern extending in one direction in a curved shape, and wherein the one direction is a direction intersecting with a virtual line connecting between the another end of the radio wave supply unit (411, 511, 611, 711) and the another end of the earth part (412, 512, 612, 712) with a shortest distance. a radio wave supply unit (411, 511, 611, 711) extending in one direction and having one end thereof electrically connectable to an external power source; an earth part (412, 512, 612, 712) disposed to be spaced apart from the radio wave supply unit (411, 511, 611, 711) by a predetermined distance in a direction intersecting with the one direction, extending in the one direction, and having one end thereof electrically connected to a ground; and a radiating element electrically connected to another end of the radio wave supply unit (411, 511, 611, 711) and another end of the earth part (412, 512, 612, 712), respectively, and configured to radiate radio wave received from the radio wave supply unit (411, 511, 611, 711), characterized in that the radiating element comprises: a middle portion (430, 530, 630, 730) connecting between the radio wave supply unit (411, 511, 611, 711) and the earth part (412, 512, 612, 712); a first radiating portion (440, 540, 640) extending from the middle portion (430, 530, 630, 730) connected to the earth part (412, 512, 612, 712), in a direction away from the earth part (412, 512, 612, 712); and a second radiating portion (450, 550, 650) extending from one end of the middle portion (430, 530, 630, 730) connected to the radio wave supply unit (411, 511, 611, 711), in a direction away from the radio wave supply unit (411, 511, 611, 711), and wherein the middle portion (430, 530, 630, 730) is formed in a curved shape extending in a direction intersecting with a virtual line connecting between the another end of the radio wave supply unit (411, 511, 611, 711) and the another end of the earth part (412, 512, 612, 712) with a shortest distance; or wherein the middle portion (430, 530, 630, 730) comprises a bending pattern extending in one direction in a curved shape, and wherein the one direction is a direction intersecting with a virtual line connecting between the another end of the radio wave supply unit (411, 511, 611, 711) and the another end of the earth part (412, 512, 612, 712) with a shortest distance. a middle portion (430, 530, 630, 730) connecting between the radio wave supply unit (411, 511, 611, 711) and the earth part (412, 512, 612, 712); a first radiating portion (440, 540, 640) extending from the middle portion (430, 530, 630, 730) connected to the earth part (412, 512, 612, 712), in a direction away from the earth part (412, 512, 612, 712); and a second radiating portion (450, 550, 650) extending from one end of the middle portion (430, 530, 630, 730) connected to the radio wave supply unit (411, 511, 611, 711), in a direction away from the radio wave supply unit (411, 511, 611, 711), and wherein the middle portion (430, 530, 630, 730) is formed in a curved shape extending in a direction intersecting with a virtual line connecting between the another end of the radio wave supply unit (411, 511, 611, 711) and the another end of the earth part (412, 512, 612, 712) with a shortest distance; or wherein the middle portion (430, 530, 630, 730) comprises a bending pattern extending in one direction in a curved shape, and wherein the one direction is a direction intersecting with a virtual line connecting between the another end of the radio wave supply unit (411, 511, 611, 711) and the another end of the earth part (412, 512, 612, 712) with a shortest distance.