The network analysis includes the power load solution for determining the initial bus angles and voltages and the computation of the reduced admittance matrix
It is pointed out in  that it is difficult to determine admittance matrix
elements analytically since they depend upon many physical properties, which are not identified easily.
For a given network with n nodes, the admittance matrix
is given by (3) in which the first two dimensions represent the bus admittance between two different nodes and the third dimension represent the frequency domain.
In effect, an admittance matrix
has larger size and symmetry properties of this matrix are lost.
This single impedance cannot be described by an impedance matrix but can be described by an admittance matrix
in the form
These were combined with a hybrid 3D/2D FEM analysis of the parallel plate structure to form a combined admittance matrix
the self-adjoint admittance matrix
operator of the complete structure .
Once this scattering matrix is known, the corresponding admittance matrix
The Characteristic Admittance Matrix
(CAM) Yc of the line is defined by:
Following the formulation in , one can determine the two-port admittance matrix
Finally, we also verify the admittance matrix
of the coupled microstrip lines structure using the commercial electromagnetic full-wave softwares, viz.
2) Form nodal admittance matrix
, Y, Susceptance matrix B