High Frequency PCB

• The impedance control requirements are relatively strict, and the relative line width control is very strict, with a general tolerance of about 2%.

• Due to the special plate, the adhesion of PTH copper is not high. It is usually necessary to roughen the via and the surface with the help of plasma processing equipment to increase the adhesion of PTH hole copper and solder mask ink.

• Do not grind the board before doing solder mask, otherwise the adhesion will be poor, and only use micro-etching potion to roughen it.

• The plates are mostly polytetrafluoroethylene materials, and there will be a lot of burrs when forming with ordinary milling cutters, and special milling cutters are required.

• High-frequency circuit boards are special circuit boards with higher electromagnetic frequencies. Generally speaking, high-frequency can be defined as frequencies above 1GHz.

High-frequency boards have very high requirements for various physical properties, accuracy and technical parameters, and are often used in automotive anti-collision systems, satellite systems, radio systems and other fields.

• Mobile communication products, intelligent lighting system

• Power amplifier, low noise amplifier, etc.

• Passive components such as power splitters, couplers, duplexers, filters, etc.

• automobile collision avoidance systems, satellite systems, and radio systems.

The high frequency of electronic equipment is a development trend, especially with the increasing development of wireless networks and satellite communications, information products are moving towards high speed and high frequency, and communication products are moving towards the standardization of voice, video and data for wireless transmission with large capacity and speed. Therefore, the development of a new generation of products requires high-frequency substrates. Communication products such as satellite systems and mobile phone receiving base stations must use high-frequency circuit boards. In the next few years, they will inevitably develop rapidly, and high-frequency substrates will be in large demand.

• Immersion copper: the hole wall is not easy to be copper.

• The control of etching, line track and width.

• Solder mask adhesion, and foaming control.

• Strictly controlled board surface scratches in each process, etc.

• 1. What is PCB frequency?

  This type of PCB is commonly utilized in applications where transmission of signals between objects is required. In the fabrication of a high frequency PCB, the use of specific materials is required. This board features faster rates of signal flow. Its frequency range is about 100 GHZ.

• 2. What is the maximum frequency of a PCB?

  A high-frequency PCB can meet your needs when incorporating a special signal requirement into your electronic components and products. It offers a frequency range of 500MHz - 2GHz, making it ideally suited for high-speed designs, as well as radio frequency (RF), microwave and mobile applications.

• 3. What is high-frequency PCB used for?

  High Frequency (HF) PCB is used to transmit electromagnetic waves in the frequency of GHz with minimal loses in the variety of applications, including mobile, microwave, radio frequency (RF) and high-speed design applications.

• 4. What is high-frequency consideration in PCB design?

  The significance of high frequency or speed for electronic circuit boards is the same. That is, “high” means that signal(s) on the board change at a rate such that signal integrity can be significantly affected by impedance and other board parameters.

• 5. What are the materials used in making high-frequency PCB?

  The high-frequency material perhaps most familiar to users of PCB laminates is polytetrafluoroethylene (PTFE) which is a synthetic thermoplastic fluoropolymer that has excellent dielectric properties at microwave frequencies.

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