RF MODULE

3 Locate the file sar_in_human_head.mphbin in the models/RF_Module/
RF_and_Microwave_Engineering folder in the COMSOL installation directory,
and then click Import.
4 From the Draw menu, choose Work-Plane Settings.
5 In the Work-Plane Settings dialog box, type -0.3 in the z edit field, and click OK.
6 From the Draw menu, choose Specify Objects>Rectangle.
7 In the Rectangle dialog box, specify a rectangle with the following settings and click
OK when done.
WIDTH HEIGHT X Y
0.4 0.4 -0.2 -0.2-0.03
8 Specify two more rectangles with the following settings:
WIDTH HEIGHT X Y
0.1 0.1 -0.3 -0.3-0.03
0.6 0.6 -0.3 -0.3-0.03
9 Select the smaller rectangle with label R2.
10 Click the Array button on the Draw toolbar. In the dialog box that appears, fill in
the following fields. Click OK when done.
X (DISPLACEMENT) Y (DISPLACEMENT) X (ARRAY SIZE) Y (ARRAY SIZE)
0.5 0.5 2 2
11 Select all objects and click the Union button on the Draw toolbar.
12 From the Draw menu, choose Extrude.
13 Enter 0.1 0.5 0.6 in the Distance edit field and click OK.
You have now created the surrounding air and the PML regions. Continue with the
patch antenna close to the head.
14 Click the Block toolbar button.
15 In the Block dialog box, click the Center option button and fill in the following fields.
Click OK when done.
X (LENGTH) Y (LENGTH) Z (LENGTH) AXIS BASE POINT (X, Y, Z)
0.004 0.08 0.08 (0.1, 0, 0.05)
16 From the Draw menu, choose Work-Plane Settings.
148 | CHAPTER 3: RF AND MICROWAVE MODELS