What is a PCB high frequency board

Definition of PCB high frequency board

High-frequency board refers to a special circuit board with a higher electromagnetic frequency. It is used for 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). The copper board is a circuit board produced by using part of the process of the ordinary rigid circuit board manufacturing method or using a special processing method. Generally speaking, a high-frequency board can be defined as a printed 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) and even in the millimeter wave field (30GHz). This also means that the frequency is getting higher and higher, and the base of the circuit board is The requirements for materials 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 very small, so the importance of the high-frequency board is highlighted.

The difference between high frequency board and HDI board
High-frequency boards are used in industries such as radar detection, instrumentation and automobile anti-collision system software, communication satellite system software, and wireless communication system software. HDI boards are used in electronic products with small size and multiple devices, and the bottom products use double panels.
The high-frequency board is a special circuit board with high electromagnetic frequency, and its technical performance, precision and performance parameters are very high. It is usually made of FR4 glass white fiber board, and a whole sheet is made of epoxy glass cloth. The color of this board is symmetrical and bright. The relative density is higher than that of the low-frequency board. Under normal circumstances, high-frequency boards are used in power circuits with frequencies exceeding 1G. Its dielectric constant is very important. It must be very small and stable, with little dielectric loss, not easy to absorb water and moisture, high temperature resistance, corrosion resistance, etc. High quality characteristics.
HDI board is a kind of high circuit density circuit board using micro blind via technology. The HDI board has an inner layer route and an outer layer route, using processing techniques such as punching and metallization in the hole to keep the internal structure of each layer route connected. It is a compact product designed for small volume customers.
POE is an OEM manufacture that focus on PCB & PCBA manufacturing over 24 years.We have the capability to manufacture pcb ranging from basic single side boards up to 40 layer multilayers, and provide one stop turnkey services.Both HDI PCB and high-frequency PCB are fully qualified. Let’s work! If you have any questions, please feel free to contact our online customer service or email, we will get back to you as soon as possible.