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1. Definition of PCB high frequency board High-frequency boards refer to special circuit boards with higher electromagnetic frequencies. They are used in 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) PCBs. They are produced on microwave-based copper-clad boards using some of the...

The electronics industry has undergone many changes over the past few years. Nowadays, millimeter wave radar and millimeter wave communication frequently appear in our sight. In particular, Huawei has made remarkable achievements in 5G, and millimeter wave technology has been put on the table. Why does millimeter wave technology play such a key role in 5G and smart cars?...

5G communication has the technical characteristics of high frequency, broadband, and high power density, and its demand for RF front-end devices has also increased significantly. At the same time, in order to control the volume of the assembled device, the modularization of the RF front-end is inevitable. The RF front-end module integrates the power amplifier...

Miniaturization of electronic designs is a driving force behind the widespread use of multilayer printed circuit boards. Multilayer circuits occupy more vertical space than horizontal space, allowing designs to be stacked in a compact space. The number of layers in a circuit refers to the number of conductor layers in the circuit, usually separated by dielectric layers....

High-frequency boards are the basis for the realization of microstrip circuit engineering. In the process of microstrip circuit design, sometimes the original design boards are out of stock, or it is necessary to use more reliable high-frequency boards for circuit design. So how to solve the above problems simply, quickly and accurately based on the original...

Circuit materials rely on high-quality conductors and dielectric materials to connect modern complex components to each other for optimal performance. However, these PCB copper conductors, whether DC or millimeter wave (mmWave) PCB boards, need protection against aging and oxidation. This protection can be achieved in the form of electrolytic and immersion coatings. They usually provide different degrees of...

Millimeter wave (mmWave) applications have grown steadily over the past few years . This growth has also come from the semiconductor industry, which has been able to mass-produce chips with good mmWave performance. As mmWave applications increase, many aspects of the electronics industry, including the PCB industry, have had to enter a rapid learning process. In general, the...

Temperature characterization parameters of PCB circuit materials can provide insight into how temperature variations in the operating environment affect mmWave and high-speed digital (HSD) circuit performance. Material operating temperature is an often overlooked circuit material parameter. However, elevated operating temperatures caused by heat sources inside or outside the board can cause changes in circuit performance, especially at...

There are many ways to solve the EMI problem. Modern EMI suppression methods include: using EMI suppression coatings, selecting appropriate EMI suppression components and EMI simulation design, etc. This article starts with the most basic PCB layout and discusses the role and design techniques of PCB layer stacking in controlling EMI radiation. Power Bus Reasonably placing a...

In the past two or three years, the most fashionable technologies and products in our industry are HDI (high density interconnection) and Build-up Multilayer (build-up printed circuit board). However, in the development trend of market economy and high-tech products, there is another branch, which is high-frequency microwave printed circuit boards and metal-based printed circuit boards. Today, I will...