High-frequency circuit board is a special PCB board with higher electromagnetic frequency
The high frequency circuit board is a special PCB board with a high electromagnetic frequency. PCB boards for high frequency (frequency greater than 300 MHZ or wavelength less than 1 m) and microwaves (frequency greater than 3 GHz or wavelength less than 0.1 m) are part of the special processing method for making conventional rigid boards or processes on microwave substrates. In general, a high frequency circuit board can be defined as a circuit board with a frequency higher than 1 GHz.
With the rapid development of science and technology, more and more equipment is designed for use in the microwave frequency band (> 1 GHz) or even the millimeter wave field (30 GHz). This also means that the frequency is getting higher and higher, and the requirements for the circuit board substrate are getting higher and higher. For example, the substrate material needs to have excellent electrical properties, good chemical stability, and the loss of the substrate is very small as the power signal frequency increases, so the importance of the high frequency plate is highlighted.
PCB high frequency circuit board application field
1. Mobile communication products;
2. Power amplifier, low noise amplifier, etc.
3. Passive devices such as power splitters, couplers, duplexers, filters, etc.
4. Vehicle collision avoidance systems, satellite systems, radio systems and other fields.