CAE Software【Femtet】Murata Software Co., Ltd.
The characteristics of a corrugated waveguide are solved.
The periodic boundary condition is applied.
Unless specified in the list below, the default conditions will be applied.
Item |
Settings |
Analysis Space |
3D |
Model unit |
mm |
Item |
Settings |
Solvers |
Electromagnetic Analysis [Hertz] |
Analysis Type |
Resonant analysis |
Options |
Select “Ignore the influence of face/edge electrode thickness” * |
* This is the default setting. There are no face electrodes with this model. Therefore it is irrelevant to select it or not.
Mesh tab, Harmonic analysis tab and Open boundary tab are set as follows.
Tab |
Setting Item |
Settings |
Mesh Tab |
Element type |
2nd-order element |
Resonant analysis |
Number of modes |
5 |
Approximated frequency |
0[Hz] |
|
Input power |
1.0[W] |
A portion of corrugated waveguide is extracted for analysis. No boundary condition is set on the faces normal to Z axis.
The “periodic” boundary condition is set on the faces of PERIOD1 and PERIOD2.
The other faces are set with Electric wall PEC.
Body Number/Type |
Body Attribute Name |
Material Name |
4/Solid |
AIR |
000_Air(*) |
* Available from the Material DB
Boundary Condition Name/Topology |
Tab |
Boundary Condition Type |
Settings |
MW/Face |
Electric |
Magnetic wall |
N/A |
PERIOD1/Face |
Symmetry/Continuity |
Periodic |
N/A |
PERIOD2/Face |
Symmetry/Continuity |
Periodic |
N/A |
Outer Boundary Condition |
Electric |
Electric wall |
N/A |
Boundary Condition Name/Topology |
Boundary Condition Name/Topology |
Boundary Condition Type |
Settings |
PERIOD1/Face |
PERIOD2/Face |
Translational |
1 ≤ θ ≤ 359 |
The phase difference of periodic boundary is varied in the range of 1 ≤ θ ≤ 359. The resonant frequencies are plotted for each angle.
The electric field at θ=180.
This is the lowest – frequency resonant mode.