The biggest problem in Reverse Engineering High Speed Printed Circuit Board with operating frequencies exceeding 1 GHz is the loss of induced electricity. The general circuit only needs to consider the conductor loss, but the induced loss near 1 GHz is dominant.
Such a result is quite unexpected for beginners. The main reason is that the importance of the loss of induced electricity has only been officially proposed in recent years.
In view of this, this article will introduce the basic Reverse Engineering High Speed Printed Circuit Board of GHz high-speed, and quantitative analysis of the frequency dependence of induced loss and conductor loss at high-speed transmission.
The term “induced loss” refers to the loss caused by the leakage of the charge stored in the capacitor between the conductor (wire) and the ground line during transmission.
When the transmission speed of the printed circuit board exceeds 2.5 Gbit/sec, the induced loss and the loss of the conductor are almost the same, so it is necessary to use the material of the substrate material for tandem (tan δ) or the size of the pattern and other the condition is changed, and the influence of the induced loss and the conductor loss on the transmission waveform is investigated by means of simulation analysis, and the above-mentioned results are implemented to implement counter-measures so that the signal exceeding GHz can be transmitted at a high speed.
