capacitive coupling is the transfer of energy within an electrical network or between distant networks by means of displacement currents induced by existing electric fields between circuit(s) nodes. This coupling can have an intentional or accidental effect. In its simplest implementation, capacitive coupling is achieved by placing a capacitor in series between two nodes. In its general form the coupling is described by a capacitance matrix C_ij. Where C_ii are self-capacitance coefficients and C_ij i≠j are mutual capacitance coefficients.