The Stripline

This line includes a fixed-width trace on the inner layer and solid ground areas above and below.

The conductor can be located in the middle of the ground area (Figure 2) or have a certain offset (Figure 3). This method is suitable for the inner radio frequency routing.

rf pcb layout
Figure 2. Stripline (end view)
microwave pcb board
Figure 3. Offset stripline. A variant of stripline for PCBs with different layer thicknesses (end view)

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