| 摘要 |
PURPOSE:To prevent a drop of efficiency of an antenna, by superposing a high frequency signal to each cable of a signal transmission line having plural cables. CONSTITUTION:Electric signals inputted through signal input terminals 2a-2f are sent to a terminal equipment 4 through choke coils 6a-6f and a multicore cable 3. A high frequency signal inputted from a high frequency input terminal 1 is superposed on all cables of the cable 3 through coupling capacitors 5a-5f, and is radiated by making the cable 3 an antenna. Accordingly, other cable for dropping the efficiency of the antenna by absorbing or shielding an electromagnetic wave comes not to exist, and the drop of efficiency is prevented. |
