Clone Printed Circuit Board Radiation

Clone printed circuit board can radiate the noise in the operation and make it becomes the source of noise: the signal line in the printed circuit board can transfer them to enclosure through grounding revert after printed circuit board clone and cause resonance, and the radiation will be emitted through enclosure; printed circuit board signal can convert the signal through its cable after clone printed circuit board, and printed circuit board can also be the source of external source, so in order to decrease the noise from radiation, below actions could be taken:

When clone printed circuit board, layout the grounding layer of printed circuit board is a critical topic, especially when layout the high frequency printed circuit board, except the increasing wire on the grounding layer, all the other areas where haven’t been taken should be view as grounding layer when printed circuit board clone, which can help to make the components as close to the ground as possible. Which can effectively decrease the parasited capacitance value, meanwhile, the ground track with large is capable of decrease the noise radiation.

Add one side or two layers of grounding plane, which means add a aluminium sheet or metal sheet attach on the soldering side of printed circuit board when clone it, or place the printed circuit board among two aluminium sheets or metal sheets. The grounding plate should close to the printed circuit board as much as possible when clone printed circuit board, and also make sure the plate has been installed on the optimum grounding point, this is a structure which can be viewed as multilayer PRINTED CIRCUIT BOARD CLONE. If the design want to achieve a better result to depressing the interference, they can place the printed circuit board in a completely shielded metal box which can help to avoid the noise and generate no noise too.