INDUCTIVE COMMUNICATION CABLE LINE

PURPOSE:To obtain an inductive communication cable line having an irradiation waveform to be used in both HF and MF bands by constituting an open line irradiating an electromagnetic field externally and a coaxial line not irradiating an electromagnetic field in alternate arrangement at a periodic interval. CONSTITUTION:The delay type open coaxial cable 1 and the coaxial cable 2 are connected alternately at each period length l. The cable 1 shows a focused waveform and an irradiated waveform is obtained with the same principle as the leakage coaxial cable by arranging alternately the open line and the coaxial line. Thus, the irradiation type induction communication cable whose electromagnetic field is inversely proportional to the root of the vertical distance rho, and this system is used for mobile communication in the frequency band of HF(30-3MHz) and MF band (3MHz-300kHz).