Explain the use of high frequency microwave circuit board?
Release time:
2022-09-06 13:41
Source:
I believe you often hear the word high-frequency circuit board, but you know what ishigh frequency microwave circuit boardIn order to let everyone more of it, then we will talk about the use of the circuit board?? Hope to bring help to more people.
With the rapid development of communication technology, the original civil communication band is very crowded. In addition, some military frequency bands are gradually giving way to civilian use, making civilian high-frequency communications grow faster than expected, thus driving the demand for high-frequency circuit boards. At the same time, at this time, we also see that, in fact, some of China's communications and electronics industry has a good industrial foundation, which determines that the corresponding high-frequency circuit boards have great development potential. Of course, in addition to these words, in recent years, wireless communications, optical fiber communications, high-speed data networks and other products continue to launch, high-speed information processing and wireless analog front-end modular digital signal processing technology,ICTechnology and MicrowavePCBdesign has put forward new requirements, but also forPCBplate andPCBThe process puts forward higher requirements. Therefore, we say that high-frequency microwave circuit boards refer to special circuit boards with high electromagnetic frequencies. Generally speaking, the frequency of the high-frequency circuit board is greater1GHz. Other process performance, accuracy, and performance parameters have high standards. High-frequency microwave circuit boards are often used in vehicle collision avoidance system software, satellite system software, wireless communication system software and other fields. And the price of the product is also very high, generally in18000Yuan/About square meters. It can not only heat the workpiece as a whole, but also heat the workpiece locally.;It can not only realize the deep diathermy of the workpiece, but also heat only the surface and surface of the workpiece.
in addition,high frequency microwave circuit boardNot only can the metal material be heated directly, but also the non-metal material can be heated indirectly, and the non-metal material can also be heated indirectly. Therefore, induction heating technology will be more and more widely used in all walks of life. In the design of this product, the design of high-frequency circuit board and transmission line width needs to be based on impedance matching theory. In this way, when the input and output impedances match the transmission line impedance, the system output power is large (the total signal power is small), and the entrance and exit reflections are small. Of course, for microwave circuit boards/RF Circuit Board/high frequency microwave radio frequency circuit board,PCBThe impedance matching design of the circuit board (high frequency circuit board) also needs to consider the operating point of the device. The signal line via causes a change in impedance transmission characteristics.TTLandCMOSThe logic signal line has a high characteristic impedance and is not affected. In addition, we also need to know that when the distance between two parallel microstrip lines is very small, coupling will occur, resulting in crosstalk between the lines and affecting the characteristic impedance of the transmission line. Special attention should be paid to high-frequency microwave circuit boards50Ohm and75Ohmic high frequency circuit, circuit design should take measures. This coupling characteristic is also used in practical circuit design, such as mobile phone transmission power measurement and power control.
After the introduction of the above content, we are also righthigh frequency microwave circuit boardThe purpose of further understanding. When I see him again in the future, I will not feel strange, and there will be no frequent problems in the process of using it. Well, that's all for today's content. I believe it will bring more wonderful knowledge points.
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