1.Finding the Right Balance for High-Frequency PCBs

For engineers and manufacturers working on RF, microwave, and high-speed electronic projects, finding a PCB laminate that balances performance, reliability, and manufacturability is key. Rogers RO4350B high-frequency printed circuit boards have become a go-to option in the industry, offering consistent performance without compromising on practicality—making them suitable for a range of commercial and industrial applications. Below, we detail our RO4350B PCB capabilities, specifications, and specialized options to meet diverse project needs.

 

2.What Is Rogers RO4350B Laminate?

Rogers RO4350B is a woven glass cloth-reinforced, hydrocarbon resin ceramic-filled laminate. Rogers RO4350B laminate is designed to deliver electrical properties similar to PTFE/fabric glass cloth materials, while maintaining processability comparable to standard epoxy resin/glass cloth (FR-4) materials. This balance makes it a practical alternative for projects that require high-frequency performance without the complexity of specialized materials. Notably, the basic color of RO4350B PCBs is white, a distinctive feature of this laminate.

 

3.Key Electrical Performance Advantages of RO4350B PCBs

One of the primary benefits of RO4350B PCBs is their stable electrical performance. With a controlled dielectric constant (Dk) of 3.48 ±0.05 (process) and 3.65 (design), and a low dissipation factor (Df) of 0.0037 at 10 GHz, they support clear signal transmission in high-frequency applications. The dielectric constant remains consistent across a broad frequency range, and the material has a low thermal coefficient of dielectric constant—helping maintain dimensional stability and reliable plated through-holes, even in mixed-dielectric multilayer PCBs.

 

Microstrip Differential Phase Length Method, DK vs. Frequency

 

4.Core Functions of Rogers RO4350B High-Frequency PCBs

Rogers RO4350B PCB Boards deliver stable, low-loss signal transmission across RF, microwave, and high-frequency bands, supporting impedance control, phase matching, and consistent signal integrity in antennas, power amplifiers, radar, and 5G base station designs. With excellent thermal stability and low Z-axis CTE, RO4350B laminate PCBs maintain dimensional and electrical consistency under varying temperatures, ensuring reliable plated through-holes and long-term performance in multilayer and hybrid constructions. Compatible with standard FR-4 processes, RO4350B PCBs enable efficient prototyping and volume production while meeting the functional demands of high-reliability RF and microwave systems.

 

5.Our RO4350B PCB Capabilities

We offer comprehensive RO4350B PCB manufacturing capabilities, covering single-sided, double-sided, multilayer, and hybrid PCBs, suitable for both prototype, small-batch, and mass production needs. Rogers RO4350B high frequency materials are widely used in typical and non-traditional microwave/RF applications, including base station antennas, attenuators, power amplifiers, RFID devices, radar systems, and sensors.

Double-Sided RO4350B PCBs

Our RO4350B double-sided PCBs are available in a range of standard thicknesses to fit diverse design requirements: 10mil (0.254mm), 20mil (0.508mm), 30mil (0.762mm), and 60mil (1.524mm). We support various copper weights, including 0.5oz (17 µm), 1oz (35µm), and 2oz (70µm), along with multiple surface finish options—bare copper, HASL, ENIG (Immersion Gold), silver, and OSP. For solder mask, we offer flexible color choices such as green, black, blue, yellow, and red.

 RO4350B Multilayer PCBs

Unlike multilayer PCBs made with FR-4, our RO4350B multilayer PCBs are constructed using RO4350B cores. Examples include 4-layer boards built on 6.6mil or 20mil RO4350B cores, and 4-layer boards using two 10mil RO4350B cores. The fixed thickness of the RO4350B core is critical, as it directly impacts the electrical length of RF lines on the circuit board—ensuring consistent performance in high-frequency designs.

 

 

RO4350B Multilayer PCBs

Hybrid RO4350B PCBs

To optimize cost without sacrificing signal performance in high-frequency environments, we offer hybrid RO4350B PCBs. These multilayer boards combine RO4350B with FR-4 glass fiber material: RO4350B is used for signal layers (to minimize signal loss), while FR-4 is used for other layers. This design achieves an ideal balance of performance and cost-effectiveness for many RF and microwave projects.

 

6.RO4350B PCB Specifications at a Glance

Parameter	Specification
PCB Material	Glass reinforced hydrocarbon ceramic laminates (Rogers RO4350B)
Dielectric Constant (Dk)	3.48 ±0.05 (process); 3.65 (design)
Dissipation Factor (Df)	0.0037 @ 10 GHz
Layer Count	1 Layer, 2 Layer, Multilayer, Hybrid type (Mixed)
Copper Weight	0.5oz (17 µm), 1oz (35µm), 2oz (70µm)
PCB Thickness	10mil (0.254mm), 20mil (0.508mm), 30mil (0.762mm), 60mil (1.524mm)
PCB Size	≤400mm X 500mm
Solder Mask	Green, Black, Blue, Yellow, Red, etc.
Surface Finish	Bare copper, HASL, ENIG, Silver, OSP, etc.
Typical Applications	Base station antennas, attenuators, power amplifiers, RFID, radar, sensors, etc.

Note: PCBs are custom-made products; images and parameters shown are for reference only.

 

7.Conclusion: Why RO4350B Is a Reliable Choice

For teams seeking a proven, consistent high-frequency PCB solution that aligns with standard manufacturing processes, Rogers RO4350B high frequency PCB offers a reliable balance of performance and practicality. Our comprehensive capabilities—from double-sided to hybrid multilayer boards—ensure we can deliver the right RO4350B PCB for your specific application, combining quality, flexibility, and cost-effectiveness.

 

We specialize in providing tailored Rogers RO4350B PCB solutions, including prototype development, small-batch production, and mass production, to meet the unique needs of your RF and microwave projects.

 

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen, China, serving customers worldwide.

 

We are devoted to delivering high-frequency PCB products and solutions of the highest quality, along with customized service. Get in touch with us to start your project !

Visit https://www.bicheng-enterprise.com to learn more.