RF MODULE

Note: This model requires the RF Module and the Structural Mechanics Module.
Modeling Using the Graphical User Interface
MODEL NAVIGATOR
The model uses linear elements to reduce the memory requirements.
1 Click the Multiphysics button.
2 Select 3D from the Space dimension list.
3 In the Structural Mechanics Module folder, select Shell>Static analysis.
4 Click Add to add a copy of this application mode.
5 In the COMSOL Multiphysics folder, select Deformed Mesh>Moving Mesh (ALE)>Static
analysis. Select Lagrange - Linear from the Element list.
6 Click Add.
7 In the RF Module folder, select Electromagnetic Waves>Eigenfrequency analysis. Select
Vector - Linear from the Element list.
8 Click Add.
9 The Electromagnetic Waves>Eigenfrequency analysis application mode now appears
under Frame (ale) in the displayed tree structure.
10 Change Ruling application mode to Electromagnetic Waves (rfw).
11 Click OK to close the Model Navigator.
OPTIONS AND SETTINGS
1 From the Options menu, choose Constants.
2 In the Constants dialog box, define the following constants. The description field is
optional. When done, click OK.
NAME EXPRESSION DESCRIPTION
T0 0[degC] Reference temperature
T1 100[degC] Operating temperature
For the parametric analysis, you replace the constant T1 for the operating temperature,
T 1 , with a parameter T1 in the Parametric Sweep dialog box.
100 | CHAPTER 3: RF AND MICROWAVE MODELS