Bicheng Electronics Technology Co., Ltd
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Meet our high-performance double-layer rigid PCB, expertly crafted using Rogers RO4725JXR material. It is designed for various high-frequency and antenna applications where reliable performance and cost-effectiveness are crucial, making it an excellent choice for cellular base station antennas and more.
The stack-up of this PCB is carefully designed as follows:
Copper_layer_1: 35 μm
Rogers RO4725JXR Core: 0.78 mm (30.7mil)
Copper_layer_2: 35 μm
PCB details
| Parameter | Specification |
| Base Material | RO4725JXR |
| Layer Count | 2-layer |
| Board Dimensions | 53mm x 79 mm=1PCS, +/- 0.15mm |
| Minimum Trace/Space | 4/7 mils |
| Minimum Hole Size | 0.3mm |
| Blind Vias | No |
| Finished Board Thickness | 0.8mm |
| Finished Cu Weight | 1oz (1.4 mils) outer layers |
| Via Plating Thickness | 20 μm |
| Surface Finish | Immersion Gold |
| Top Silkscreen | No |
| Bottom Silkscreen | No |
| Top Solder Mask | No |
| Bottom Solder Mask | No |
| Electrical Testing | 100% tested prior to shipment |
Material Composition & Cost Advantage
Rogers RO4725JXR Hydrocarbon / Ceramic / Woven Glass antenna grade laminates are a reliable, low-cost alternative to conventional PTFE-based laminates.
Processing Compatibility
The resin systems of RO4725JXR dielectric materials provide the necessary properties for ideal antenna performance. RO4725JXR antenna grade laminates are fully compatible with conventional FR-4 and high temperature lead-free solder processing. These materials do not require the special treatment needed on traditional PTFE-based laminates for plated through-hole preparation. RO4725JXR laminates are an affordable alternative to conventional PTFE-based antenna materials, allowing for designers to optimize cost and performance.
Electrical & Mechanical Properties
RO4725JXR laminates have the mechanical and electrical properties that antenna designers need. The laminates have a dielectric constant (Dk) of 2.55 and a loss tangent (Df) of 0.0022 measured at 2.5 GHz when using LoPro? Reverse Treated EDC Foil. These values allow antenna designers to realize substantial gain values while minimizing signal loss. Materials are available with a demonstrated low PIM performance, with values better than -160 dBc (43dBm 1,900MHz signal).
Key Features
-Dielectric Constant of DK 2.55 +/-0.05 at 10GHz/23°C
-Dissipation Factor of 0.0026 at 10GHz/23°C and 0.0022 at 2.5GHz
-Excellent Thermal Coefficient of Dielectric Constant +34 ppm/°C
-CTE matched to copper with X axis of 13.9 ppm/°C, Y axis of 19 ppm/°C, Z axis of 25.6 ppm/°C
-High Tg value of >280 °C
-Perfect PIM value of -166 dBC
Benefits
-Low loss dielectric with low profile foil
-Low insertion loss
-Dk matched to standard PTFE based antenna offerings
-Reduced passive inter-modulation (PIM)
-Consistent circuit performance
Where Can It Be Used?
The unique properties of RO4725JXR make this PCB suitable for a range of applications:
-Cellular Base Station Antennas
-Compliance & Availability
This PCB meets strict IPC-Class-2 standards, ensuring consistent quality and reliability. The type of artwork supplied is Gerber RS-274-X for seamless production integration.
We offer worldwide availability, making this high-quality PCB accessible to engineers and manufacturers across all regions.
Choose this PCB for a solution that delivers on both quality and value.