RF MODULE

2 Select the RF Module>Electromagnetic Waves>TM Waves>Harmonic propagation
application mode and then click OK.
OPTIONS AND SETTINGS
1 From the Options menu, choose Constants.
2 Enter the following variable name, expression, and (optionally) description; when
done, click OK.
NAME EXPRESSION DESCRIPTION
f 500[MHz] Frequency
3 From the Options menu, choose Axes/Grid Settings.
4 On the Grid page, clear the Auto check box.
5 Enter grid settings according to the following table; when done, click OK.
GRID
r spacing 0.05
Extra r 0.0015 0.004916
z spacing
Extra z
0.05
GEOMETRY MODELING
To create the model geometry, draw the right half of the cross section of the antenna
and the coaxial feed in a truncated half space.
1 Open the Rectangle dialog box by shift-clicking the Rectangle/Square button on the
Draw toolbar. Set the Width to 0.282, Height to 0.301, Base to Corner, r to 0, and
z to -0.101. Click OK.
2 Using the same approach, draw a second rectangle and set the Width to 0.003416,
Height to 0.1, r to 0.0015, and z to -0.1.
3 Draw a third rectangle and set the Width to 0.276, Height to 0.091, r to 0.006, and
z to -0.101.
4 Click the Zoom Extents button on the Main toolbar.
5 Click the Line button on the Draw toolbar.
MONOCONICAL RF ANTENNA | 71