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Why do PCBs need impedance Control? 01 What is Impedance In circuits with resistance, inductance, and capacitance, the resistance to alternating current is called impedance. Impedance is usually represented by Z, which is a complex number. The real part is called resistance, and the imaginary part is called reactance. The blocking effect of capacitance on alternating current in the circuit is call...
With the rapid development of electronic communication technology, in order to achieve high-speed and high-frequency signal transmission, more and more high-frequency printed circuit boards are used in communication equipment. The dielectric materials used in high-frequency boards have excellent electrical properties and good Chemical stability, then which of the following is its main manifestatio...
Via is one of the important components of multi-layer PCB circuit boards, and the cost of drilling usually accounts for 30% to 40% of the cost of PCB manufacturing. Simply put, every hole on the PCB can be called a via. From the point of view of function, vias can be divided into two categories: One is used as electrical connection between layers The second is to fix or locate the device In terms ...
TMM Series Laminate Materials TMM series temperature stable microwave composite circuit board materials are thermosetting resin polymer composite materials filled with ceramic powder, specially designed for high-reliability stripline and microstrip line applications. TMM series laminate materials are suitable for a wide dielectric constant Scope and surface coating requirements. The electrical and...
PTFE and F4B Polytetrafluoroethylene (or PTFE), commonly known as "Plastic King", is a polymer compound formed by polymerization of tetrafluoroethylene. It has excellent chemical stability, corrosion resistance, airtightness, high lubrication and non-stick properties, Insulation and good aging resistance. Used as engineering plastics, it can be made into PTFE tubes, rods, belts, plates, films, etc...
Summary of the classification of pcb circuit boards, detailed introduction of the use and characteristics of single-sided circuit boards, double-sided circuit boards, and multi-layer circuit boards. PCB circuit board classification PCB circuit boards are divided into single-sided circuit boards, double-sided circuit boards, and multilayer circuit boards according to the number of superimposed laye...
RT/duroid 6035HTc high-frequency circuit material is a ceramic-filled PTFE composite material used in high-power radio frequency and microwave equipment. The thermal conductivity of RT/duroid 6035HTC laminate is 2.4 times that of standard RT/duroid 60o0 products, and the copper foil (electrolytic copper and reverse copper) used has long-term thermal stability, which is ideal for high-power device ...
RT/duroidR 5870 and .5880 are glass microfiber reinforced PTFF composite materials. They are designed for precise stripline and microstrip circuit applications. Randomly oriented microglass fibers make the dielectric constant have a good consistency. The dielectric constant between the different plates of RT/duroid 5870 and 5880 laminates remains the same and is a constant in a wide frequency rang...
RO4000 series high frequency circuit board materials have high frequency performance and low production cost of circuit boards. It has low loss and similar processing technology to ordinary epoxy resin/glass woven cloth (FR4), so it has a strong price competitiveness. When the circuit operating frequency is above 50OMHz, the range of materials that design engineers can choose is greatly reduced. R...
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