Feasibility Of A Radiocommunication In Mine Galleries By Means Of A Coaxial Cable Having A High Coupling Impedance.; Proceedings Of Thru-The-Earth Electromagnetics Workshop
Description:To realize a radiowave communication along mine galleries a few kilometers long without repeater, we show that it is possible to use a coaxial cable bearing an important surface transfer impedance like a transmission line with an inductive coupling to the transmitter and the receiver. We determine the electrical and geometrical constants of the cable and the optimal frequency.
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