High Speed PCB Card Cloning Characterized Impedance

High Speed PCB Card Cloning needs to take Characterized Impedance effect into account since high speed printed circuit board layout and schematic normally has signal transmission issue which can greatly affect the performance of it;

In the high speed Pcb card Cloning, controllable impedance pcb card and characterized impedance on the tracks are the most commonly discuss and popular see issues. And it is critical to understand the transmission line definition: as we all know the transmission line is constituted by two conductors both which have certain length, one can be used to transmit the signal, and the other can be used to receive the signal.

So in a multilayer pcb card, each one tracks on it is actually a part of the transmission line, and adjacent reference plane can be viewed as the 2^nd tracks or return route. The key for one track becomes a well functioning transmission line is its controllable impedance in the whole line can stay stable which is critical in the process of pcb board impedance reverse engineering.

The key for a pcb card to become a controllable impedance board is make all of the featured impedance can satisfy the regulated value, normally it is between 25 ohm to 70 ohm. In the multilayer board, the key of transmission line is keep the featured impedance consistency in the whole tracks.

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