When we Clone Printed Circuit Board High Speed Digital Transmission Line, the influence of a single 90° corner on the signal quality of the high-speed digital transmission line is relative to the deviation of the height of the wire from the reference plane, the deviation of the uniformity of the line width and line spacing during the wire etching process, and the change of the dielectric constant of the base plate to the frequency signal will be taken into consideration,
Clone Printed Circuit Board High Speed Digital Transmission Line
Even the effects of via parasitic parameters are much greater than the problems caused by 90° corners. However, today’s high-speed digital circuit transmission lines can’t avoid the equal length. When more than ten or twenty corners are superimposed, the signal rise delay caused by the cumulative effect of the 90° corners will become non-negligible.
Clone PCB High Speed Digital Transmission Line
High-speed signals are always transmitted along impedance paths, with equal lengths around 90° corners, and the actual signal transmission path at the end point will be slightly shorter than the original. And the current high-speed digital signal transmission rate is becoming higher and higher, the current HDMI 2.0 standard, the transmission bandwidth rate has reached 18Gbps, 90° corner wiring will no longer meet the requirements.
