LTCC Transmit/Receive X-Band Module with a Phased Array Antenna
10 www.cadence.com/go/awr
Step 8: Completing the Module
The TX/RX module in this example used a time-division duplex (TDD) approach. A vendor switch model was added (S3P and
layout). Figure 20 shows the schematic model, layout model, and the transitions.
Figure 20: The schematic model, layout model, and transitions
Adding Vias
Once the model of the module was complete, the TX and RX designs were integrated and ground or via fences were added.
The vias can be drawn either at the schematic or layout level. Figure 21 shows the schematic and the 2D and 3D views of
the layout.
Figure 21: The schematic (lower right) and 2D and 3D views of the layout of the module with ground or via fences
Adding Passive Components
With the model complete, the entire 2x2 model could be designed. For that, the passive components synthesis wizard was
used for the splitter. Figure 22 shows the wizard dialog box with a Wilkinson divider selected as the component type with a
single section, centered at 10GHz.
Figure 22: Components synthesis wizard dialog box
