Distance Dependence of Transmission Characteristics Between Small Dipole Antennas in Tissue Equivalent Liquid Operated in kHz Band

Introducing a longer water tank with a width of 1200 mm which is filled with tissue equivalent liquid imitating human tissue, small dipole antennas can be faced each other to measure the transmission characteristics between them as a function of distance in the kHz band. Then, it is possible to examine the transmission characteristics at a distance of 200 mm or more, which could not be measured by the water tank used before. It is quantitatively shown that the effect of common mode current can be observed in our measurement setup and eliminated by appropriately applying time domain gating technique.