HFSS15: De-embedded S-Matrices

If a uniform length of transmission line is added to (or removed from) a port, the S-matrix of the modified structure can be calculated using the following relationship ,

where

• is a diagonal matrix with the following entries:

• g =a + jb is the complex propagation constant, where:

• a is the attenuation constant of the wave.

• b is the propagation constant of the uniform transmission line at port i.

• l_i is the length of the uniform transmission line that has been added to or removed from the structure at port i. A positive value indicates that a length of transmission line has been removed from the structure.

The value of g for each port is automatically calculated by HFSS.