MDRSTUB2 models a double-shunt "butterfly" microstrip radial stub that shunts microstrip line. Both stubs are the same size. The model is a two-port through element.
|Ro||Outer radius of the stub||Length||L|
|Wg||Width of crossing of stub and microstrip line||Length||W|
|Theta||Angle of the stub||Angle||90 Deg|
Theta must be within the range 9o ≤ Theta ≤ 160o.
Model is feasible if
Model implementation is based on cascading multiple segments of lossy microstrip transmission lines described in . It accounts for losses in metal and in substrate dielectrics. Radiation loss is not included.
This element uses line types to determine its layout. By default, the layout uses the first line type defined in your Layout Process File (LPF). You can change the element to use any of the line types configured in your process:
Select the item in the layout.
Right-click and chooseto display the Cell Options dialog box.
Click the Layout tab and select a Line Type.
Clickto use the new line type in the layout.
See “Cell Options Dialog Box: Layout Tab ” for Cell Options dialog box Layout tab details.
See “The Layout Process File (LPF)” for more information on editing Layout Process Files (LPFs) and to learn about adding or editing line types.