WL-CT350 2-Layer PCB 40mil substrate built on double sided copper clad laminate using in antenna
Introducing Our 2-Layer PCB with WL-CT350 Core
We are pleased to offer our 2-layer PCB, built on WL-CT350 laminate, a high-performance material designed for high-frequency applications requiring low loss, thermal stability, and cost-effective manufacturing. This PCB is ideal for base station antennas, automotive radar, and RF devices, where consistent performance and reliability are critical.
PCB Construction Details
This PCB is designed to meet the needs of high-frequency and high-reliability applications. Key specifications include:
| Parameter | Specification |
| Base Material | WL-CT350 |
| Layer Count | 2 layers |
| Board Dimensions | 41.8mm x 51.35mm ± 0.15mm |
| Minimum Trace/Space | 5/7 mils |
| Minimum Hole Size | 0.3mm |
| Blind/Buried Vias | None |
| Finished Board Thickness | 1.1mm |
| Copper Weight | 1oz (1.4 mils) outer layers |
| Via Plating Thickness | 20μm |
| Surface Finish | Immersion Gold |
| Top Solder Mask | None |
| Bottom Solder Mask | None |
| Top Silkscreen | Black |
| Bottom Silkscreen | None |
| Electrical Testing | 100% tested prior to shipment |
| Accepted Standard | IPC-Class-2 |
PCB Stackup
The 40mil (1.016mm) WL-CT350 laminate ensures low dielectric loss, thermal reliability, and stable impedance. The PCB stackup is as follows:
| Layer | Material | Thickness |
| Copper Layer 1 | Finished Copper | 35μm (1oz) |
| Core Material | WL-CT350 | 1.016mm (40mil) |
| Copper Layer 2 | Finished Copper | 35μm (1oz) |
This stackup offers excellent thermal performance, dimensional stability, and low insertion loss for high-frequency designs.
PCB Statistics
This PCB is optimized for high-frequency RF designs, with the following characteristics:
| Parameter | Value |
| Components | 21 |
| Total Pads | 63 |
| Thru Hole Pads | 39 |
| Top SMT Pads | 24 |
| Bottom SMT Pads | 0 |
| Vias | 29 |
| Nets | 2 |
| Supplied Artwork | Gerber RS-274-X |
About WL-CT350 Material
The WL-CT350 laminate, developed by Wangling, is a high-frequency material combining hydrocarbon resin, ceramics, and fiberglass cloth to deliver low loss and high thermal stability. Its low dissipation factor (Df) and stable dielectric constant (Dk) make it suitable for high-frequency and RF applications. The material is compatible with FR-4 manufacturing processes, simplifying production and reducing costs.
Key Features of WL-CT350:
- Dielectric Constant (Dk): 3.48 at 10GHz/23°C, ensuring precise and consistent impedance control.
- Dissipation Factor (Df): 0.0039 at 10GHz, minimizing signal loss.
- Thermal Coefficient of Dk (TCDk): 52 ppm/°C, offering excellent stability over temperature changes.
- Thermal Conductivity: 0.7 W/mK, providing efficient heat dissipation.
- Moisture Absorption: 0.05%, ensuring consistent performance in humid environments.
- Coefficient of Thermal Expansion (CTE): X-axis: 11 ppm/°C, Y-axis: 14 ppm/°C, Z-axis: 34 ppm/°C
The WL-CT350 laminate provides excellent stability, low loss, and cost-effective manufacturability, making it a reliable choice for high-frequency designs.
Applications
The WL-CT350-based PCB is ideal for a variety of high-frequency and RF applications, such as:
- Base Station and Satellite Antennas
- Automotive Radar and Sensors
- Power Amplifiers
- Satellite High-Frequency Heads
- RF Devices and Filters
- WIMAX and Distributed Antennas
Conclusion
The 2-layer PCB with WL-CT350 laminate is a high-performance solution for RF and high-frequency applications. Its low loss, thermal stability, and cost-effective manufacturability make it an excellent choice for industries like telecommunications, automotive, aerospace, and satellite communications.
For more information or to request a quote, contact us today. We are committed to delivering high-quality PCBs tailored to your specific application needs!
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