Abstract: An electromagnetic wave transceiving apparatus is disclosed, including a detection and control unit, an electromagnetic exciter, a dielectric adjustment unit, and a positioning unit. When the electromagnetic wave transceiving apparatus is coupled to a surface of an external dielectric body, the electromagnetic exciter, the dielectric adjustment unit, and the coupled external dielectric body constitute a resonator with a specific electromagnetic wave spectrum. Considering the influence of the external dielectric body to which the electromagnetic wave transceiving apparatus is coupled, when the electromagnetic wave transceiving apparatus is coupled to the surface of the external dielectric body, the electromagnetic exciter, the dielectric adjustment unit, and the coupled external dielectric body may adjust the electromagnetic exciter and the dielectric adjustment unit to form a resonator with the required frequency through the detection and control unit.