Rogers RO4725JXR PCB double-sided PCB built on 60.7mil laminat material with 1oz copper and Immersion Gold using in Microwave
We are pleased to offer our 2-layer PCB, constructed with Rogers RO4725JXR(https://www.circuitboardpcbs.com/sale-14172268-ro4725jxr-antenna-pcb-built-on-30-7mil-0-78mm-substrates-with-double-layer-copper-and-immersion-gold.html), a high-performance laminate designed to meet the stringent requirements of antenna and high-frequency applications. With its low dielectric constant, low loss characteristics, and excellent passive intermodulation (PIM) performance, this PCB is ideal for cellular base station antennas and other RF applications.
PCB Construction Details
This PCB has been carefully engineered to deliver optimal electrical and mechanical performance. Below are the detailed construction specifications:
| Parameter | Specification |
| Base Material | Rogers RO4725JXR |
| Layer Count | 2 layers |
| Board Dimensions | 115.1mm x 66.3mm ± 0.15mm |
| Minimum Trace/Space | 5/6 mils |
| Minimum Hole Size | 0.3mm |
| Blind/Buried Vias | None |
| Finished Board Thickness | 1.62mm |
| 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 | None |
| Bottom Silkscreen | None |
| Electrical Testing | 100% tested prior to shipment |
| Quality Standard | IPC-Class-2 |
PCB Stackup
The RO4725JXR core, with its 60.7mil thickness (1.542mm), provides low insertion loss, dimensional stability, and thermal reliability, making it suitable for high-frequency applications. The PCB stackup is as follows:
| Layer | Material | Thickness |
| Copper Layer 1 | Copper Foil | 35μm (1oz) |
| Core Material | Rogers RO4725JXR Core | 1.542mm (60.7mil) |
| Copper Layer 2 | Copper Foil | 35μm (1oz) |
PCB Statistics
This PCB is optimized for compact, high-frequency designs, with the following specifications:
| Parameter | Value |
| Components | 25 |
| Total Pads | 150 |
| Thru Hole Pads | 92 |
| Top SMT Pads | 58 |
| Bottom SMT Pads | 0 |
| Vias | 131 |
| Nets | 2 |
| Supplied Artwork | Gerber RS-274-X |
About Rogers RO4725JXR Material
The Rogers RO4725JXR laminate is a hydrocarbon/ceramic/glass-reinforced material designed for antenna-grade applications. It offers low dielectric loss, low profile foil, and consistent electrical performance, making it an affordable alternative to PTFE-based laminates. Additionally, this material is compatible with standard FR-4 processes, reducing manufacturing costs while maintaining high performance.
Key Features of RO4725JXR:
- Dielectric Constant (Dk): 2.55 ± 0.05 at 10 GHz/23°C, providing stable and consistent performance.
- Dissipation Factor (Df): 0.0026 at 10 GHz/23°C (0.0022 at 2.5 GHz), ensuring minimal signal loss.
- Thermal Coefficient of Dk: +34 ppm/°C, offering excellent stability over a wide temperature range.
- Coefficient of Thermal Expansion (CTE): X-axis: 13.9 ppm/°C. Y-axis: 19 ppm/°C. Z-axis: 25.6 ppm/°C.
- Glass Transition Temperature (Tg): >280°C, ensuring stability during high-temperature processing.
- PIM Performance: -166 dBc, delivering excellent passive intermodulation performance.
The RO4725JXR laminate is designed to meet high-performance antenna requirements while being cost-effective and environmentally friendly.
Applications
This PCB, built with Rogers RO4725JXR, is ideal for a wide range of RF and microwave applications, including:
- Cellular Base Station Antennas
- High-Frequency Antenna Designs
- Power Amplifiers
- Microwave Systems
Conclusion
The 2-layer PCB with Rogers RO4725JXR core is a versatile and cost-effective solution for antenna and RF applications requiring low loss, thermal reliability, and dimensional stability. Its advanced material properties make it an excellent choice for industries such as telecommunications, aerospace, automotive, and satellite communication.
For more information or to request a quote, contact us today. We are committed to delivering high-quality PCBs tailored to your specific needs!
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