Re: Rf Design
The best practise in Rf design is to keep the signal trace length as short as possible, provide a proper return path for all RF signals using power/gnd planes. If the circuit is more radiating then you need to provide shielding.
Some more points...
# avoid sharp corners.
# keep signal traces and component leads as short as possible.
# inputs and outputs should be far apart, so that RF energy will not leak back from output to input. stages should line up, rather than snake around.
# decouple the RF parts of the circuit from the DC parts of the circuit.
# shield AF and IF components from RF components.
Nagaraj.