Collisions

When working with RF Designs Collisions are a way of life.

What we have here is two parts on three pads. Actually it's two parts with overlapping pads.

Only one of the two overlapping parts will be installed at any given time.

This technique is used to minimize parasitic traces and pads (no RF stubs).  

Using this technique you can create controlled impedance routes with minimum impedance discontinuities.

To get through the Design Rule Checks (DRCs) we can either disable the check or create an exception in the rules for the overlapping parts.

I recommend solution number 2 shown below..

Solutions:

1) Disabling Component Clearance Checks (not recommended).

2) Creating a rule with exceptions for the overlapping parts. (recommended).

click on images to view


Syntax:

InComponent('C307')