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What are the performance and functions of Rogers 4350B high frequency PCB?

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Rogers 4350B is a high-frequency PCB material produced by Rogers Corporation. It performs well in high frequency applications and has the following performance and functions:

Low RF Loss: 

4350B has low loss characteristics, which makes it effective in reducing signal attenuation in high-frequency signal transmission.

Low Dielectric Constant: 

The material has a low dielectric constant (Dk value), which helps to increase the transmission speed of the circuit and reduce signal transmission delay.

Dielectric Constant Stability: 

The dielectric constant of 4350B changes less with temperature and frequency, which helps to maintain the consistency of circuit performance under different environmental conditions.

Low Thermal Expansion Coefficient: 

The thermal expansion coefficient (CTE) of 4350B is similar to that of copper, which helps to maintain dimensional stability in multi-layer circuit design, especially in applications that experience thermal shock.

Good Processability: 

Compared with ordinary FR4 materials, 4350B has similar processing technology, is easy to manufacture and process, and does not require special through-hole pretreatment processes.

High Tg Value: 

4350B has a glass transition temperature (Tg) above 280°C, ensuring dimensional stability during board processing.

Excellent Dimensional Accuracy: 

Due to the low Z-axis CTE expansion coefficient, the quality of inner layer through holes can be ensured even in multi-layer circuit designs.

Suitable for Broadband Applications: 

The dielectric properties of 4350B are quite stable over a wide frequency range, making it suitable for broadband RF applications.

LoPro Copper Foil: 

The use of LoPro copper foil can further reduce insertion loss and is suitable for applications requiring higher performance.


Environmental and Safety Standards: 

4350B meets ROHS compatibility standards and can meet UL94V-0 flame retardant requirements in some cases.

Multi-layer Circuit Design: 

Due to its low dielectric loss and thermal stability, 4350B is suitable for multi-layer circuit board design, especially where fine matching and impedance control are required.

High Frequency Applications: 

4350B is generally suitable for high-frequency applications below 30GHz, including radar systems, satellite communications, wireless infrastructure, etc.

Millimeter-wave Radar PCB Antenna: 

In millimeter-wave radar systems, 4350B is essential for achieving high-performance PCB antennas due to its low loss and stable performance.

High Frequency Applications: 

4350B materials can generally be applied to frequencies up to 30GHz, making them ideal for high-speed communications and high frequency electronic devices.

Electrical Performance:

 4350B has excellent electrical performance, including low RF loss (Df: 0.0037@10GHz) and low dielectric constant (Dk: 3.48 +/- 0.05), which helps improve signal transmission quality and speed.

Thermal Performance: 

4350B's low Z-axis thermal expansion coefficient (32 ppm/℃) helps maintain dimensional stability in multi-layer circuit boards, even in environments with temperature changes.

Intra-board Expansion Coefficient: 

Low intra-board expansion coefficient helps maintain the mechanical stability and reliability of the circuit board.

Material Compatibility: 

4350B material has a similar thermal expansion coefficient to metal materials such as copper, which helps achieve good material compatibility in multi-layer circuit boards.

Environmental Standards: 

4350B complies with ROHS standards, an environmental directive that restricts the use of hazardous substances and helps reduce environmental impact.

UL Certification: 

4350B materials may have UL certification, an international recognition of material safety that helps ensure the safety and reliability of the material.

Design Flexibility: 

The processing technology of 4350B materials is similar to that of ordinary FR4 boards, allowing design engineers to easily design and manufacture RF circuits.

RF System Design: 

4350B materials are suitable for RF system design, including components such as antennas, filters, and power amplifiers.

Semiconductor Test Boards:

Due to its stable electrical performance, 4350B is also suitable for the manufacture of semiconductor test boards.

IC Package Substrates: 

4350B materials can also be used for IC package substrates, providing the stability and reliability required for high-performance electronic devices.

These features further emphasize the wide application and importance of Rogers 4350B as a high-performance PCB material in high frequency and high-speed electronic applications.

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