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Measurement of S-parameter
- Reciprocal Network
- is defined as having identical transmission characteristics from port
one to port two or from port one to port two. This implies that the S-parameter matrix is equal
to its transpose, . In case of a two-port network, .
- Lossless Network
- does not dissipate any power. The power incident on the network must be equal to
power reflected or . This implies that the S-parameter matrix is
unitary, or . In case of a two-port network, .
- Lossy Network
- implies the net reflected power is less than the net incident power, or
is positive definite.