Method, apparatus, and article of manufacture for predicting electrical behavior of a multiport device having balanced device ports

A system for predicting electrical behavior of a device comprising:

• a computational processing element,
• means for representing at least one balanced matching network having a balanced input port and a balanced output port,
• means for representing a connection of said at least one matching network between said balanced output port and a balanced port of said device,
• means for calculating a matching network S-parameter matrix,
• means for obtaining a device S-parameter matrix,
• means for calculating a cascaded S-parameter matrix for said matching network in combination with said device, and
• means for extracting mixed-mode cascaded S-parameters from said cascaded S-parameter matrix.

An article of manufacture comprising computer readable storage media including computer software embedded therein that causes a processing unit to perform the method comprising the steps of:

• representing at least one balanced matching network having a balanced input port and a balanced output port,
• representing a connection of said at least one matching network between said balanced output port and a balanced port of said device,
• calculating a matching network S-parameter matrix,
• obtaining a device S-parameter matrix,
• calculating a cascaded S-parameter matrix for said matching network in combination with said device, and
• extracting mixed-mode cascaded S-parameters from said cascaded S-parameter matrix.