RT/duroid 5880 2-Layer 1.1mm PCB with Immersion Gold for High-Frequency Microwave Applications
1.Introduction of RT/duroid 5880
Rogers RT/duroid 5880 high-frequency laminates are PTFE composites reinforced with glass microfibers, designed for exacting stripline and microstrip circuit applications. The randomly oriented microfibers result in exceptional dielectric constant uniformity. The dielectric constant of RT/duroid 5880 laminatesis consistent from panel to panel and remains stable over a wide frequency range. Its low dissipation factor makes it suitable for applications extending into Ku-band and beyond. RT/duroid 5880 laminates are easily cut, sheared, and machined into shape. They are resistant to all solvents and reagents—hot or cold—commonly used in etching printed circuits or plating edges and holes.
2.Key Features
Dielectric Constant: 2.20 ±0.02 at 10 GHz/23°C
Dissipation Factor: 0.0009 at 10 GHz
Temperature Coefficient of Dk: -125 ppm/°C
Moisture Absorption: 0.02%
CTE: X: 31 ppm/°C, Y: 48 ppm/°C, Z: 237 ppm/°C
Isotropic Properties
3.Benefits
Uniform electrical properties over a wide frequency range
Easy to cut, shear, and machine
Resistant to solvents and reagents used in etching and plating
Ideal for high-moisture environments
Well-established, reliable material
Lowest electrical loss among reinforced PTFE materials
4.PCB Construction Details
| Parameter | Specification |
|---|---|
| Base Material | RT/duroid 5880 |
| Layer Count | 2-layer |
| Board Dimensions | 110mm × 33.59mm (±0.15mm) |
| Min. Trace/Space | 4/6 mils |
| Min. Hole Size | 0.3mm |
| Blind Vias | No |
| Finished Thickness | 1.1mm (40 mil) |
| Cu Weight (Inner/Outer) | 1oz (35μm) |
| Via Plating Thickness | 20 μm |
| Surface Finish | Immersion Gold |
| Top Silkscreen | White |
| Bottom Silkscreen | No |
| Top Solder Mask | No |
| Bottom Solder Mask | No |
| Electrical Test | 100% |
5.PCB Stackup (2-Layer Rigid Structure)
Copper_layer_1 - 35 μm
RT/duroid 5880 - 1.016 mm (40mil)
Copper_layer_2 - 35 μm
6.PCB Statistics:
Components: 12
Total Pads: 37
Thru Hole Pads: 29
Top SMT Pads: 18
Bottom SMT Pads: 0
Vias: 56
Nets: 2
7.Typical Applications
Commercial Airline Broadband Antennas
Microstrip and Stripline Circuits
Millimeter Wave Applications
Radar Systems
Guidance Systems
Point-to-Point Digital Radio Antennas
8.Quality Assurance
Artwork Format: Gerber RS-274-X
Accepted Standard: IPC-Class-2
Availability: Worldwide
