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  • 2018.4 26
    The application of directional coupler
    Directional coupler, a passive device used in radio technology.The application of directional coupler as below: 1) For power synthesis systems. In the multi-carrier frequency synthesis system,a directional coupler with 3dB is usually used.(generally called 3dB bridge) 2) For receiver's anti-interference measurement or stray measurement. In the FR test and measurement system,if the tested device is a receiver,usually through the coupled end of the directional coupler, an adjacent interference signal can be injected into the receiver, and then the receiver anti-interference performance can be tested through a comprehensive tester connected to the direct end of the directional coupler.
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  • 2018.4 25
    Several types of transmission lines
    1.Coaxial-cable and twisted-pair.They are often applied for connection from systems to systems.The characteristic impedance of coaxial cable is usually 50Ω and 75Ω,and twisted-pair cable is usually 110Ω. 2.Microstrip line in PCB.Microstrip line is a banding line(signal line),Separated from the ground plane by an electrical medium.If the thickness, width, and distance between the lines and ground are controllable, the characteristic impedance of the line can be controlled.
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  • 2018.4 24
    CAM software automation
    Some of the industry-leading manufacturers are already enjoying the great benefits of process automation,such as production capacity improvement,data quality improvement and training time shortening. Why do we need to automate? Why CAM can't meet all needs of automation function that we only need to push the right button to achieve auto-output? It's easy to answer the questions.There is no one in the world who does the same thing in the same way. Every manufacturer has its own way to use CAM system. For example,in the panel design,every manufacturer usually uses very different symbols,target hole and legends,and places them on different areas of the board edge. That's why CAM only offered basic functions and users need to expand the database when they used.
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  • 2018.4 23
    Overseas customers come to visit our company
    Last Friday(20th April 2018),three of our overseas customers have visited our factory and had a site audit. Our overseas marketing manager Mr.Clemons Van accompanied customers and took them around to vist the workshops. Clemons made a detailed introduction of production equipments and production capabilities for customers during the workshops visiting. A good working environment,a well-organized production process,a strict quality control and an advanced auto product line,which has been recognized and praised by the customers.
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  • 2018.4 20
    The frequently-used units measurement in PCB design
    The frequently-used units measurement in PCB design
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