Jamma Arcade PCB Board Copying

Jamma Arcade PCB Board Copying will surely refers to the placement of vias which is really a complicated matter, and this article only discusses the grounded vias.

First of all, the ground wire next to the radio frequency trace can preferably be punched through the via hole and connected to the ground plane of the bottom or middle layer,

so that any interference signal or radiation can have the shortest path to the ground, but the via hole and the distance from the RF signal line should not be too close, otherwise it will seriously affect the quality of the RF signal, which can be flexibly grasped in the actual Jamma Arcade PCB Board Copying process.

As shown in the figure below, we can see that there are many vias distributed on the two layers of the highlighted signal line.

Secondly, at the ground plane with a large area, we usually place a lot of vias to connect the ground of different layers. In the wiring of the RF circuit, it should be noted that the large vias should be punched irregularly, and it is best to make them into a diamond shape, which can suppress various interferences to the greatest extent.