RO4830 High Frequency PCBs Power Next-Generation Automotive Radar

September 24, 2025

As automotive technology advances toward higher levels of autonomy, reliable high-frequency circuit materials become increasingly critical. Rogers RO4830 high-frequency laminates offer a compelling combination of radio frequency performance, manufacturing practicality, and cost-effectiveness—particularly for millimeter-wave applications like automotive radar systems.

This thermoset material serves as a practical alternative to traditional PTFE-based laminates while maintaining excellent electrical properties. Better yet, it integrates smoothly into standard FR-4 multi-layer board processes, simplifying adoption for volume production.

Understanding RO4830 Laminates

RO4830 represents Rogers' solution for designers seeking stable high-frequency performance without complex processing. It is specially engineered for use in 76–81 GHz automotive radar sensors and performs effectively as a cap layer in FR-4 based multi-layer constructions. This makes it both electrically capable and manufacturably practical.

Key Properties of RO4830

1.Consistent Dielectric Constant

A dielectric constant of 3.24 remains stable across operating conditions, ensuring predictable performance in high-frequency designs.

2.Low Loss at Millimeter Waves

Insertion loss measures only:
2.2 dB/inch at 5 mil thickness
1.8 dB/inch at 9.4 mil thickness
(at 77 GHz)

3. Flame Retardant Safety

UL 94 V-0 certification ensures compliance with automotive and other safety-focused industries.

4. Enhanced Signal Integrity

LoPro® copper foil minimizes surface roughness, reducing loss and supporting consistent impedance.

RO4830 PCB Manufacturing Options

We support flexible configuration options for RO4830-based designs:

Board Construction: Single-layer, double-layer, multi-layer and hybrid builds
Copper Weights: 1 oz (35µm) and 2 oz (70µm)
Thickness Options: 5 mil (0.127mm) or 9.4 mil (0.239mm)
Panel Size: Up to 400mm x 500mm
Solder Mask: Green, black, blue, yellow, red and other colors
Surface Finishes: Immersion gold, HASL, immersion silver, immersion tin, ENEPIG, OSP, bare copper, and pure gold

Typical Applications

RO4830 has proven particularly valuable in:

76–81 GHz automotive radar sensors
Automotive radar antennas
Advanced Driver Assistance Systems (ADAS)
Millimeter-wave communication systems

Ideal for Automotive Radar and Beyond

RO4830 stands out as a balanced solution—delivering the high-frequency performance needed for mmWave applications while supporting cost-sensitive, volume manufacturing requirements. Its compatibility with standard PCB processes makes it an accessible choice for automotive radar and similar demanding applications.

Ready to design with RO4830?Contact us today for technical consultation or project pricing.