| 摘要 |
the system includes at least two data terminals (2,3) with a modulator and demodulator, and an antenna for transmitting and/or receiving electromagnetic waves (6). A data transmission medium (1) comprises an electromagnetic waveguide. The waveguide is formed as a closed pipeline carrying a fluid (4). The pipeline may have a metal encapsulation, and/or a coating on the inner surface that has a higher conductivity than the material of the pipeline. |
