In high frequency, it also have conductance at dielectric material due to dissipation factor of the dielectric material causing the current leakage.
介质电导的存在，是由于介质的耗散因子的存在，使得再高频下，传输线存在漏电流。
2
A sensor in the utility model adopts a no-leakage PH composite electrode and an annular conductance electrode in which a temperature sensor is arranged.