Design, Simulation and Comparison of Mixing Schemes for DC, AC and Bidirectional Data through Coaxial Cable

This paper deals with the design and simulation of mixing scheme for remote system operation connected through long coaxial cable. The remote system requires mixing of DC, high power AC and high speed data, which enables a cost effective interconnections through a single coaxial cable. Two schemes are proposed for the mixing, one with a relay based switching, in which the high power AC is in short pulsed form and other with passive filters. Simulation study using Multisim and Matlab was carried out for both the schemes. A comparison of these two schemes is also discussed.