High Frequency PCB

High Frequency PCB

-Are you dealing with signal transmission or wireless network equipment? One of the key components in these devices is high frequency PCB.

These circuits are also important in electronic devices such as mobile phones because they are responsible for data transmission.

We introduced these PCBs in detail below, including High -Frequency design, so please continue to read and learn more.

-What is a High-Frequency PCB board?

Generally speaking, high -frequency high -speed PCB boards refer to printed circuit boards above 1GHz, which may be different in the industry. Its physical performance, accuracy, and technical parameters are very high. They are often used in the fields of communication systems, car ADAS systems, satellite communication systems, and radio systems. But what’s the difference between HDI PCB and normal FR4 PCB. There are high -frequency signal lines on the board or most of the PCB with high -frequency cables as high frequency boards; HDI board refers to a relatively dense line in PCB, mainly such as mobile phones and computer motherboards such as PCB. PCB is now developing in this regard. Ordinary double-sided PCB mainly mean that there are no special types of boards and signals.

High frequency (HF) PCB is used to transmit electromagnetic waves at the frequency of GHz. In various applications, the loss in various applications, including mobile, microwave ovens, radio frequency (RF), and high -speed design applications. Therefore, a printing circuit board with certain features is used to transmit these electromagnetic waves. When designing PCB for high-frequency applications, several parameters were considered.

When special signal requirements are included in your electronic equipment and products, high-frequency PCB can meet your needs. These higher transmission frequencies can support faster signal flow, which is necessary in today's increasingly complex electronic switches and other components.

The increase in the complexity of electronic components and switches continues to require a faster signal flow rate, thereby higher transmission frequency. Because the pulse of electronic components is short, high-frequency technology is also necessary to regard the width of the conductor/track as an electronic component. According to various parameters, high-frequency signals are reflected on the printing circuit board, which means that the impedance must be specified accurately and implemented at the highest process control level.

-How to choose PCB materials for High -Frequency applications?

The PCB laminate material you choose for PCB building is essential for the overall function and lifespan of the final product. When the operating frequency enters the microwave oven and even the RF frequency (RF) region, your PCB laminate material selection will have a significant impact on the overall loss of the finished PCB after PCB assembly and final assembly. When determining the best material suitable for High-Frequency PCB manufacturing, you must carefully consider electrical, heat and mechanical properties.

In high frequency design, you may find that FR4 sometimes does this job just at certain higher frequencies. It’s obviously you choose the wrong PCB material. In high frequencies, FR4's main attention is its relatively high dielectric constant (DK), which is generally considered to be about 4.2. In terms of hybrid structure, FR4 can still be used as a suitable laminate material for High-Frequency PCB, when it comes to a hybrid construction, in which the fabrication is combined with high frequency laminate. At HITECH Circuits, we carry a series of specially designed materials to maintain signal integrity in the radio frequency and microwave regions.

-Materials for high -frequency circuit boards

High -frequency board has special requirements for the materials used:

Adapted dielectric dielectric constant

The attenuation of valid signal transmission is low

Uniform structure, low insulation thickness and dielectric constants low tolerance

For in many applications, FR-4 materials with appropriate accumulation are used. In addition, we handle high -frequency materials with improved dielectric characteristics. These have very low loss factor (DF), a low-dielectric constant, which is mainly related to temperature and frequency.

Other favorable features are high glass transition temperature (TG), excellent thermal durability and very low hydrophilic rate.

We use PTFE materials for high-frequency printing circuit boards for impedance control. The sandwich accumulation of material combination (hybrid structure) can also be achieved.

Like Rogers, Isola, Taconic, Arlon, they are all have the common used high frequency PCB material.

-Rogers PCB fabrication needs in-depth research on high-frequency PCB. Hitech Circuits is a Rogers PCB manufacturer and has a deep understanding of the performance of Rogers PCB material. For example, Rogers PCB laminates and Rogers PCB dielectric constant in Rogers PCB material properties Rogers PCB is a high-frequency PCB material model produced by Rogers company, different from the conventional FR-4 PCB material. There is no epoxy resin in the Rogers PCB material, and Rogers ceramic PCB is used as the High-frequency PCB material. Absorption of Rogers PCB, it can be used as an ideal choice for application ns in high humidity environments, providing customers in the high-frequency PCB industry with the highest quality Rogers PCB material and high-quality PCB quality.

PCB high -frequency board refers to a special line board with a higher electromagnetic frequency. It is used for high frequency (frequency greater than 300MHz or wavelength generally, and high -frequency boards can be defined as a frequency of more than 1GHz). The substrate material requires excellent electrical performance In good chemical stability, the loss of losses on the substrate with the increase of the frequency of the power supply signal is very small, so the importance of high -frequency plates is highlighted.

PCB high-frequency boards have high -frequency circuit boards with inductive heating technology in the communication industry, network technology field promotion, and high -speed information processing systems to meet the requirements of many high -precision parameter instruments. The trusted high -frequency circuit board provided great help in actual production.