...
| Code Block |
|---|
ModelInfo: {
File: cell1fourth.ncdf
BoundaryCondition: {
Magnetic: 1,2,3,4
Exterior: 6
Waveguide: 7 //for each number appeared here, it should have at least one Port container later. Absorbing and Waveguide have the same effects. Omega3P internally will figure out which BC to use.
}
}
FiniteElement: {
Order: 1
Curved Surfaces: on
}
PostProcess: {
Toggle: on
ModeFile: test
}
EigenSolver: {
NumEigenvalues: 1
FrequencyShift: 9.e9
}
CheckPoint: {
Action: save
Directory: eigens
}
Port: {
ReferenceNumber: 7 //this number should match surface groups in waveguide boundary condition.
NumberOfModes: 1
}
|
Analytic Ports (for polarization)
Omega3p normally uses a numerical solution for each port but if you need to specify the polarization of the waveguide you can give an analytic solution instead.
From the last example we could have used:
| Code Block |
|---|
Port: {
ReferenceNumber: 7 //this number should match surface groups in waveguide boundary condition.
Origin: 0.0, 0.0415, 0.0 //the origin of the 2D port in the 3D coordinate system
XDirection: 1.0, 0.0, 0.0 //the x axis of the 2D port in the 3D coordinate system
YDirection: 0.0, 0.0, -1.0 //the y axis of the 2D port in the 3D coordinate system
ESolver: {
Type: Analytic //analytic expression is used
Mode: {
WaveguideType: Rectangular //it is a rectangular waveguide
ModeType: TE 1 0 //load the TE10 mode
A: 0.028499 //dimension of the waveguide in x
B: 0.0134053 //dimension of the waveguide in y
}
}
}
|
...
| Code Block |
|---|
Port: {
ReferenceNumber: 5 //reference surface ID
Origin: 0.0, 0.0, 0.0 //not used
XDirection: 1.0, 0.0, 0.0 //not used
YDirection: 0.0, 1.0, 0.0 //not used
ESolver: {
Type: Analytic
Mode:{
Mode number: 1
Waveguide type: ABC
Mode type: ABC
}
}
}
|
LinearSolver options in EigenSolver container
- The first option is that user does not provide anything. The EigenSolver container in the input file looks like:
In this case, Omega3P will use the default option for linear solver for solving shifted linear systemsCode Block EigenSolver: { NumEigenvalues: 1 FrequencyShift: 10.e9 Tolerance: 1.e-8 }
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