2.4 Interference Guidelines

The interference affects the RF receiver performance on the board, radiating noise into the antenna or coupling into the RF traces going to input LNA. It is mandatory to follow the interference recommendations as listed:

• Ensure that there is no noise circuit placed anywhere near the antenna or the RF traces. All the noise generating circuits must be shielded so that they do not radiate noise that is picked up by the antenna.
• Ensure that no traces are routed underneath the RF portion of IS2083BM input.
• Ensure that no traces route underneath of the RF traces from the antenna to the IS2083BM. This applies to all layers.
• Even if there is a ground plane on a layer between the RF route and another signal, the ground return current flows on the ground plane and couple into the RF traces.