source:Other information release time:2023-04-25 Hits: Popular:PCB Assembly company
High -frequency circuit board is a special circuit board with higher electromagnetic frequencies. Generally speaking, high -frequency can be defined as frequency above 1GHz. Its physical performance, accuracy, and technical parameters are very high. They are often used in the fields of automotive anti -collision systems, satellite systems, and radio systems.
The high -frequency circuit board provided by this utility model is provided with the upper opening of the empty groove in the core board and the edge of the lower opening edge of the opening. When the copper plate adhesion, the flowing glue will not enter the hollow tank, that is, the bonding operation can be completed by the first pressure blending. The high -frequency circuit board that can be completed by the existing technology is required to be completed. The structure of the board is simple, the cost is low, and it is easy to manufacture.
PCB design high -frequency circuit board wiring precautions
1. Reasonable selection of layersSolar Energy System
In the PCB design, when the high -frequency circuit board wiring, the intermediate inner layer plane is used as the power supply and ground layer, which can play a shielding role, effectively reduce parasitic inductance, shorten the length of the signal line, and reduce the cross interference between signals. Generally, the general situation Below, the four -layer board is 20DB lower than the two -layer noise.
2. Number of perforated
In the PCB design, the less the number of holes is, the better.
3. Walk length
In the PCB design, the shorter the length of the wiring is, the better the wiring length, and the shorter the parallel distance, the better.
4. Walking method
In the PCB design, when the high -frequency circuit board wiring, the wiring must be turned at 45 ° angle, which can reduce the transmission of high -frequency signals and coupling between each other.
5. The direction of the layer wiring
In the PCB design, when the high -frequency circuit board wiring, the layer wiring direction should take the vertical direction, that is, the top layer is the horizontal direction, and the bottom layer is vertical direction, which can reduce interference between signals.
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