High-frequency circuit board refers to a special PCB board with high electromagnetic frequency. It is used in the fields of high frequency (frequency greater than 300MHZ or wavelength less than 1 meter) and microwave (frequency greater than 3GHZ or wavelength less than 0.1 meter). It is a circuit board produced by using part of the ordinary rigid circuit board manufacturing method or using a special processing method on the copper clad board. Generally speaking, a high-frequency circuit board can be defined as a circuit board with a frequency above 1GHz.
With the rapid development of science and technology, more and more equipment designs are applied in the microwave frequency band (>1GHZ) or even in the millimeter wave field (3OGHZ), which also means that the frequency is getting higher and higher for the substrate of the circuit board. requirements are also getting higher. For example, the substrate material needs to have excellent electrical properties, good chemical stability, and the loss on the substrate is required to be very small with the increase of the frequency of the power signal, so the importance of high-frequency boards is highlighted.
PCB high frequency circuit board application field
1. Mobile communication products;
2. Power amplifier, low noise amplifier, etc.;
3. Passive components such as power splitters, couplers, duplexers, and filters;
4. Automobile anti-collision system, satellite system, radio system and other fields.
