Two-port ideal power transferitors: a unified introduction to ideal transformer and gyrator

A unified approach to ideal transformer and gyrator is proposed. They are presented as the only two ports belonging to the class of ideal power transferitors, i.e., the only two ports that absorb instantaneous power from one port and supply the same amount of instantaneous power from the other port. By exploiting the transmission matrix, this approach evidences similarities and differences between the two well-known two ports pointing out that other two-port ideal power transferitors cannot exist.