Why Choose RO4350B Over PTFE for Cost-Effective High-Frequency PCBs?

Introduction to RO4350B High Frequency PCB

In the realm of high-frequency printed circuit boards (PCBs),Rogers RO4350B stands out as a high-performance material engineered for demanding RF and microwave applications. This advanced laminate combines a proprietary blend of woven glass-reinforced hydrocarbon/ceramic materials, delivering electrical performance on par with PTFE/woven glass while maintaining the manufacturability benefits of traditional epoxy/glass laminates.

RO4350B laminates provide exceptional control over dielectric constant (Dk) while ensuring minimal signal loss. Unlike PTFE-based materials, which often require specialized handling and through-hole treatments, Rogers 4350B can be processed using standard FR-4 fabrication techniques, significantly reducing production costs and lead times. Additionally, these materials meet the stringent UL 94 V-0 flammability rating, making them ideal for high-power RF designs and active electronic devices where reliability is critical.

Key Features of RO4350B High Frequency PCB

1. Low Dielectric Constant for Enhanced Signal Integrity

RO4350B laminates exhibit a stable dielectric constant (Dk) of 3.50 at 10 GHz, ensuring consistent signal propagation in high-frequency circuits. A low Dk is essential for minimizing signal delay and distortion, making RO4350B an excellent choice for high-speed digital and RF applications.

2. Ultra-Low Dissipation Factor for Minimal Signal Loss

With a dissipation factor (Df) of just 0.0017 at 10 GHz, RO4350B PCB ssignificantly reduce signal attenuation, preserving signal integrity even in high-frequency environments. This low-loss characteristic is crucial for applications such as 5G communications, radar systems, and satellite technology.

3. Excellent Thermal and Dimensional Stability

RO4350B offers outstanding dimensional stability, with a Z-axis coefficient of thermal expansion (CTE) of 24 ppm/°C, closely matching that of copper. This alignment prevents delamination and ensures reliable performance under thermal stress. Additionally, the material boasts a glass transition temperature (Tg) exceeding 280°C (536°F), enabling it to withstand high-temperature assembly processes such as lead-free soldering without warping or degradation.

4. Superior Mechanical and Environmental Resistance

Engineered for durability, RO4350B substrate PCBs resist moisture absorption and environmental factors that could compromise performance. Their robust construction ensures long-term reliability in harsh operating conditions, making them suitable for aerospace, defense, and automotive applications.

PCB Manufacturing Capabilities for RO4350B

We provide a comprehensive range of fabrication options to meet diverse design requirements:

1. Board Configurations

Single-sided, double-sided, and multi-layer PCBs

Hybrid constructions combining RO4350B with other high-frequency or standard materials

2. Available Thickness Options

Standard thicknesses: 10 mil, 20 mil, 30 mil, 60 mil

Custom thicknesses: 4 mil, 6.6 mil, 13.3 mil, 16.6 mil, and others upon request

3. Copper Weight and Board Size

Finished copper options: 1oz or 2oz

Maximum PCB dimensions: 400mm x 500mm

4. Solder Mask and Surface Finishes

Solder mask colors: Green, black, red, yellow, and more

Surface finishes: Bare copper, HASL, immersion gold (ENIG), immersion silver, immersion tin, OSP, ENEPIG, and pure gold plating

Applications of RO4350B High Frequency PCBs

RO4350B high frequency PCBs are widely used in industries where high-frequency performance and reliability are non-negotiable. Some key applications include:

5G and mmWave Communication Systems–Ensures low signal loss in high-frequency transmission lines and antennas.

Aerospace and Defense Electronics–Provides stable performance in radar systems, avionics, and satellite communications.

Automotive Radar and ADAS (Advanced Driver Assistance Systems)–Supports high-frequency signal processing for collision avoidance and autonomous driving.

Medical RF Devices–Used in high-precision diagnostic and therapeutic equipment.

High-Power RF Amplifiers and Base Station Antennas–Delivers efficient power handling with minimal insertion loss.

Why Choose Us for Your RO4350B PCB Needs?

As a trusted PCB supplier, we combine advanced fabrication techniques, stringent quality control, and deep expertise in high-frequency materials to deliver Rogers RO4350B PCBs that meet the highest industry standards. Whether you require prototypes or high-volume production, we provide competitive pricing, fast turnaround times, and exceptional technical support to ensure your project’s success.

Contact us today to discuss your RO4350B PCB requirements and discover how we can help optimize your high-frequency designs for superior performance and reliability!