Terminal Configurations of n-Port Networks

In this paper, bounds on the number of port terminals for families of equivalent
n
-port networks are discussed. Classes of
n
-ports, for which no equivalents with less than
2n-1
terminals exist, are demonstrated. It is shown that upper bounds (less than
2n
) on the number of terminals also exist. These may not exceed, in certain cases, even the minimum number of
n + 1
terminals. Finally, some incomplete results on related problems are presented.