高頻PCB和低頻PCB有什麼區別？
2019-09-12
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Author：ipcb
p>What are the differences between High Frequency PCB and Low Frequency PCB:
In high-frequency circuit design, 在大多數情况下，層形式的電源比主跡線設計要好得多, 使電路始終沿著阻抗最小的路徑.此外, 電源板必須為PCB上所有生成和接收的訊號提供訊號回路, 這樣可以最大限度地减少訊號回路，從而减少譟音, 這是低頻電路設計者經常忽視的.
在高頻PCB的設計中, we should follow the following principles:
Unity and stability of power source and ground.
仔細佈線和正確端接可以消除反射.
仔細佈線和正確的端部連接可以减少電容和電感串擾.
需要抑制雜訊以滿足EMC要求.
Low frequency circuit
Single point grounding: the grounding of all circuits and equipment must be grounded at a point in the entire circuit system
Connect to this junction point and use this point as a reference point for circuits and equipment
