DiClad 870 Double-layer PCB base on 93mil(2.5mm) Core laminates
2.5mm with Immersion Gold Finish for RF Digital Radio Antennas
(All PCBs are custom-manufactured. Reference images and parameters
may vary based on your design requirements.)
Overview of DiClad 870 2-Layer PCB
The DiClad 870 PCB is a high-performance 2-layer rigid PCB designed
for RF and microwave applications requiring low insertion loss,
stable dielectric properties, and excellent mechanical durability.
Built with Rogers DiClad 870 laminates, this PCB features a 93mil
core and a finished thickness of 2.5mm, offering exceptional
dimensional stability and low dielectric constant (Dk) of 2.33 at
10 GHz.
The woven fiberglass and PTFE composite construction ensures
minimal moisture absorption and consistent electrical performance,
making it ideal for applications like radar feed networks, phased
array systems, and low-loss base station antennas.
PCB Construction Details
| Parameter | Specification |
| Base Material | Rogers DiClad 870 |
| Layer Count | 2 layers |
| Board Dimensions | 83mm x 35mm |
| Minimum Trace/Space | 5/9 mils |
| Minimum Hole Size | 0.3mm |
| Blind Vias | None |
| Finished Thickness | 2.5mm |
| Copper Weight | 1oz (1.4 mils) outer layers |
| Via Plating Thickness | 20μm |
| Surface Finish | Immersion Gold |
| Top Silkscreen | None |
| Bottom Silkscreen | None |
| Top Solder Mask | None |
| Bottom Solder Mask | None |
| Electrical Testing | 100% tested before shipment |
PCB Stackup
The 2-layer DiClad 870 PCB stackup is optimized for low dielectric
constant and minimal signal loss:
| Layer | Material | Thickness |
| Copper Layer 1 | Copper (1oz) | 35μm |
| Dielectric Layer | Rogers DiClad 870 Core | 2.362mm (93mil) |
| Copper Layer 2 | Copper (1oz) | 35μm |
Introduction to DiClad 870 Material
Rogers DiClad 870 laminates are woven fiberglass-reinforced,
PTFE-based composites designed for low dielectric constant and low
dissipation factor applications. The high PTFE content ensures
minimal insertion loss, while the cross-plied fiberglass
construction guarantees dimensional stability and mechanical
robustness.
Key Features of DiClad 870
- Dielectric Constant (Dk): 2.33 at 10 GHz / 1 MHz (50% RH).
- Dissipation Factor: 0.0013 at 10 GHz, 0.0009 at 1 MHz.
- Thermal Coefficient of Dielectric Constant: -161 ppm/°C from -10°C
to 140°C.
- Moisture Absorption: Very low at 0.02%.
- Peel Strength: High peel strength of 14 lbs/in for reliable copper
adhesion.
- Flammability: UL 94-V0 grade for safe operation.
- Benefits of DiClad 870
- Stable Electrical Properties: Consistent Dk across a wide frequency
range.
- Low Insertion Loss: Supports wider line widths for enhanced
performance.
- Dimensional Stability: Ensures reliability in RF and microwave
applications.
Applications
Radar Feed Networks
Phased Array Networks
Low-Loss Base Station Antennas
Guidance Systems
Digital Radio Antennas
Microwave Components
Conclusion
The DiClad 870 PCB is a premium solution for RF and microwave
applications, offering low dielectric constant, minimal circuit
losses, and superior dimensional stability. With its 93mil DiClad
870 core, 1oz copper layers, and immersion gold finish, this PCB
delivers consistent performance for demanding applications like
radar systems, phased array networks, and telecom antennas.
Compliant with IPC-Class-2 standards and available worldwide, the
DiClad 870 PCB is the perfect choice for engineers seeking
high-frequency reliability and precision.
