High-frequency PCB design requires special considerations to ensure optimal performance of the board. These include rules that consider material selection, stackup, routing, and impedance control. By following these guidelines and taking the necessary steps, designers can create a high-frequency board that produces reliable results.
High-frequency boards are the basis for the realization of microstrip circuit engineering. In the process of microstrip circuit design, sometimes the original design boards are out of stock, or it is necessary to use more reliable high-frequency boards for circuit design
Difficulties in high frequency board processing
1. Copper deposition: It is not easy to copperize the hole wall
2. Control of line gaps and sand holes in pattern transfer, etching, line width
3. Green oil process: control of green oil adhesion and green oil bubbling
4. Strict control of board scratches in each process, etc.