COMSOL 6.2 - mphevalglobalmatrix

Evaluate global matrix variables such as a capacitance matrix or a S-parameters matrix from a model.

[M,unit] = mphevalglobalmatrix(model,expr,…)

[M,unit] = mphevalglobalmatrix(model,expr,…) evaluates the global matrix of the variable expr and returns the full matrix M. The unit is returned in unit.

The function mphevalglobalmatrix accepts the following property/value pairs:

Table 6-9: Property/Value Pairs for the mphevalglobalmatrix Command.
Property	Property value	Default	Description
dataset	String		Dataset tag
dataseries	none \| average \| sum	none	Data series operation
outerdataseries	none \| average \| sum	none	Outer data series operation
outersolnum	Positive integer \| end \| all	1	Solution number for parametric sweep
solnum	Integer vector \| end \| all	all	Solution for evaluation
t	Double array		Time for evaluation
trans	none \| inverse \| maxwellmutual \| mutualmaxwell \| invmaxwellmutual \| sy \| sz \| ys \| yz \| zs \| zy	none	The transformation to apply to the matrix
unit	String		Unit to use for the evaluation
y0	Double array	Taken from the physics interfaces	If trans is sy or ys: The characteristic admittance
z0	Double array	Taken from the physics interfaces	If trans is sz or zs: The characteristic impedance

S-parameters evaluation requires the RF module.

Example

Open the model RF_Module/Ferrimagnetic_Devices/lossy_circulator_3d from the RF Module Application Library:

model = mphopen('lossy_circulator_3d.mph');

Evaluate the S-parameters matrix using the solution dataset dset4:

M = mphevalglobalmatrix(model,'emw.SdB','dataset','dset4');