Patent ID: 8174334

Claim:
A method for transmitting through an interconnection having n transmission conductors and a reference conductor, n being an integer greater than or equal to 2, the method providing, in a known frequency band, m transmission channels each corresponding to a signal to be sent from an input of at least one transmitting circuit to an output of at least one receiving circuit, where m is an integer greater than or equal to 2 and less than or equal to n, the method comprising: modeling the interconnection in a part of the known frequency band, taking into account the lumped impedances seen by the interconnection and caused by the circuits connected to the interconnection elsewhere than at the ends of the interconnection, as a (n+1)-conductor multiconductor transmission line, the multiconductor transmission line using natural voltages referenced to ground and natural currents as natural electrical variables, the multiconductor transmission line having a per-unit-length impedance matrix and a per-unit-length admittance matrix which are not both uniform or substantially uniform over the length of the multiconductor transmission line, a characteristic impedance matrix of the multiconductor transmission line being substantially uniform over the length of the multiconductor transmission line; and coupling the terminals of at least one termination circuit to the reference conductor and to each of the transmission conductors, the at least one termination circuit being, in the part of the known frequency band, approximately characterized, for the interconnection, by an impedance matrix with respect to ground, the impedance matrix with respect to ground being a matrix of size n×n.