Not long ago, the ministry of industry and information technology issued the "specifications and conditions for the printed circuit board industry" (hereinafter referred to as "specifications and conditions") and "interim measures for the administration of printed circuit board industry specifications and announcements", which took effect on February 1 this year. The document specifies: 1. The [...]
With the marketization of scientific research and technology development, it is becoming more and more difficult to complete the design of complex electronic systems in a short time by using traditional electronic design methods. EDA (EleCTRonICs Design Automation) technology is an advanced, rapid and effective electronic Design Automation tool with the rapid development of integrated [...]
When troubleshooting non-functional or non-performing circuits, engineers can often run simulations or other analytical tools to consider the circuit at the schematic level. If these methods fail to solve the problem, even the best engineers may be stumped, frustrated, or confused. I've been through this before. To avoid this kind of cul-de-sac, here's a simple [...]
At present, there are so many PCB design software, which PCB design software should be learned? At present the mainstream of the three PCB design software, the current mainstream is not mentioned. 1. Altium Designer is short for AD. It's sort of an updated version of PROTEL. 2. PADS 3. Cadence allegro Don't worry about [...]
5G spectrum is much higher than 4G, and the number of acer stations has increased significantly 5G spectrum is much higher than 4G, with poor penetration and large attenuation of electromagnetic wave. When other factors are not taken into account, the coverage of base station is smaller than that of 4G base station, and the [...]
RF circuit board design is often described as a kind of "black art" due to many theoretical uncertainties, but this view is only partially correct, RF circuit board design also has many guidelines to follow and should not be ignored. In practical design, however, the real trick is to compromise these guidelines and rules when [...]
5G technology change, radio frequency is the most significant, PCB both offensive and defensive The wave of 5G construction that will start in 2019 will open up new space for the upstream industry. Considering the increase of frequency and reduction of time delay, 5G is not only different from 4G in system architecture design, but [...]
The price of PCB is something that many purchasers have always been confused about, and many people would also question how to calculate these prices when placing orders online. Now we will discuss the components of PCB price together. I. different materials used in PCB cause price diversity Common double face plate is an example, [...]
Those who have experienced electromagnetic interference and those who have not. With the increase of PCB routing express, emc design is a problem that we electronic engineers have to consider. For a design, there are five important attributes to consider when conducting EMC analysis of a product and design: (1) key device size: the physical [...]
Emi problems in printed circuit boards include common impedance coupling, crosstalk, radiation from high-frequency current-carrying wires, and induction of printed lines to high-frequency radiation. The following describes the PCB design in order to meet the electromagnetic compatibility must pay attention to matters. 1. The common impedance coupling problems in PCB for analog and digital circuit [...]