Home / Tutorial / Electromagnetic Analysis (3D Harmonic Analysis) (Hertz) / 02.Create the Boxes for the Substrate and the Ambient Air
02.Create Boxes for the Substrate and the Air Domain
We create a box for the substrate and another for the air domain.

Procedure
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On the [Model] tab, go to , click [Solid], and select [ [Specify Length]] at the submenu.
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Designate the startpoint., enter Startpoint (X: 0, Y: 0, Z: 0) and click .
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Tips on the parameter input dialog box
If the input value is nil, you don't need to enter 0 in the entry field. The blank is acceptable. Press the <Tab> key to hop around the items in the dialog box. Press the <Enter> key on to proceed to the next setting. 
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Set the width. Enter Width: 20 and click .
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Set the depth. Enter Depth: 20 and click .
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Set the height. Enter Height: 1 and click .
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Now the box for the substrate (SUB) has been created.
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Create another box for the ambient air (AIR). This time, we try the mouse pointer method on the . Rest the mouse pointer on Startpoint (X: 0, Y: 0, Z: 1) on the modeling window and click it.
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Set the width. Move the pointer to Width: 20 and click it.
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Set the depth. Move the pointer to Depth: 20 and click it.
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Set the height. Move the pointer to Height: 6.4 and click it.
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The box for the ambient (AIR) has been created.
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Click in the parameter dialog box and exit.
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It is also possible to exit with the <Esc> key.
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You can undo or redo the operation. The operations can be changed as follows; On the [Model] tab, go to

and click [Undo] to undo the modeling or attribute operation. and click [Redo] to redo the modeling or attribute operation.
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