source:Industry News release time:2022-07-12 Article author:yu Popular:pcb
High-frequency boards refer to special circuit boards with high electromagnetic frequencies, which are used for PCBs 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 meters). The copper plate is a PCB circuit board produced by using part of the process of the ordinary rigid circuit board manufacturing method or using a special treatment method. Generally speaking, a high-frequency board can be defined as a PCB circuit board with a frequency above 1GHz.
With the rapid development of science and technology, more and more devices are designed for applications in the microwave frequency band (>1GHZ) or even in the millimeter wave field (30GHZ), which also means that the frequency is getting higher and higher, and the impact on PCB circuit boards is increasing. The requirements for substrates are also getting higher and higher. For example, the substrate material needs to have excellent electrical properties, good chemical stability, and the loss on the substrate with the increase of the power signal frequency is required to be very small, so the importance of high-frequency boards is highlighted.
High frequency board application fields:
1. Mobile communication products;
2. Power amplifier, low noise amplifier, etc.;
3. Passive devices such as power dividers, couplers, duplexers, filters, etc.;
4. Automobile anti-collision system, satellite system, radio system and other fields.
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