This advanced 2-layer rigid PCB utilizes Rogers RO3003G2 high-frequency laminate, specifically engineered for millimeter-wave automotive radar systems. This solution delivers exceptional performance for 77GHz ADAS applications, offering superior signal integrity and reliability in demanding automotive environments.
PCB Construction Details
The stack-up of this PCB consists of:
- Copper Layer 1: 35 μm (1oz)
- RO3003G2 Core: 0.127 mm (5 mil)
- Copper Layer 2: 35 μm (1oz)
PCB Specifications
| Parameter |
Specification |
| Base Material |
RO3003G2 |
| Layer Count |
2 Layers |
| Board Dimensions |
95mm x 95mm (±0.15mm) |
| Minimum Trace/Space |
14/14 mils |
| Minimum Hole Size |
0.2mm |
| Finished Board Thickness |
0.2mm |
| Surface Finish |
Immersion Gold |
| Via Plating Thickness |
20 μm |
| Electrical Testing |
100% tested prior to shipment |
RO3003G2 Material Advantages
Dielectric Properties
RO3003G2 laminate exhibits an ultra-stable dielectric constant of 3.0±0.04 at 10GHz and 3.07 at 77GHz, ensuring consistent performance across automotive radar frequencies.
Low Loss Characteristics
With a dissipation factor of just 0.0011 at 10GHz, RO3003G2 minimizes signal loss, critical for maintaining radar sensitivity and accuracy.
Thermal Stability
- Excellent thermal coefficient of dielectric constant: -35 ppm/°C
- Matched CTE system (16/17/18 ppm/°C in X/Y/Z axes)
- Maintains performance across automotive temperature ranges
Enhanced Features
- Very Low Profile (VLP) ED copper
- Reduced dielectric porosity
- Optimized filler system for consistent performance
Key Benefits
- Best-in-class insertion loss performance
- Minimized dielectric constant variation
- Enables reliable small via implementation (0.2mm)
- Optimized for 77GHz automotive radar
- Improved manufacturing yield
Typical Applications
- Adaptive cruise control systems
- Forward collision warning
- Active brake assist
- Lane change assistance
- Traffic jam pilot
- Automated parking systems
- Blind spot detection
Quality Assurance
- Complies with IPC-Class-2 standards
- Gerber RS-274-X format
- Worldwide availability
- 100% electrical testing
Conclusion
This RO3003G2 PCB solution represents the cutting edge in automotive radar technology, combining Rogers' advanced high-frequency materials with precision manufacturing. Its optimized performance at 77GHz makes it ideal for next-generation ADAS applications requiring reliable operation in challenging environments.
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