RO4830 Plus 2-Layer PCB built on 5mil thickness substrates: A
Cost-Effective Solution for Millimeter Wave Automotive Radar
Applications by Bicheng Technologies Limited
(All PCBs are custom-manufactured. Reference images and parameters
may vary based on your design requirements.)
At Bicheng Technologies Limited, we are proud to introduce the
RO4830 Plus 2-Layer PCB, a cutting-edge solution tailored for
millimeter wave automotive radar sensors and other high-frequency
RF applications. Built with Rogers RO4830 Plus thermoset laminates,
this PCB delivers low insertion loss, stable dielectric
performance, and cost-efficiency, making it the perfect choice for
76-81 GHz automotive radar sensors, patch antennas, and RF feed
networks.
This 0.2mm thick PCB, featuring 1oz copper weight, electroless
nickel immersion gold (ENIG) surface finish, and green solder mask,
is optimized for precise and reliable performance in high-frequency
applications. Let’s dive into the construction, features, and
applications of this innovative PCB.
1. Overview of the RO4830 Plus 2-Layer PCB
The RO4830 Plus 2-Layer PCB is designed to meet the stringent
demands of millimeter wave applications, offering low insertion
loss, stable dielectric constant (Dk), and high thermal
reliability. Rogers RO4830 Plus laminates are woven-glass-free
thermoset dielectric materials engineered for automotive radar
sensors and other RF designs requiring 77 GHz compatibility.
This PCB is also PFAS-free, lead-free solder compatible, and can be
fabricated using standard FR-4 processes, making it an economical
and eco-friendly choice. At Bicheng Technologies Limited, all PCBs
are manufactured to IPC-Class-2 standards and undergo rigorous 100%
electrical testing to ensure consistent performance and
reliability.
PCB Construction Details
| Parameter | Specification |
| Base Material | Rogers RO4830 Plus |
| Layer Count | 2 layers |
| Board Dimensions | 45mm x 55mm |
| Minimum Trace/Space | 4/5 mils |
| Minimum Hole Size | 0.2mm |
| Blind Vias | No |
| Finished Board Thickness | 0.2mm |
| Finished Copper Weight | 1oz (1.4 mils) outer layers |
| Via Plating Thickness | 20 μm |
| Surface Finish | Electroless Nickel Immersion Gold (ENIG) |
| Top Silkscreen | No |
| Bottom Silkscreen | No |
| Top Solder Mask | Green |
| Bottom Solder Mask | No |
| Electrical Testing | 100% tested prior to shipment |
The 2-layer stackup, with 5mil RO4830 Plus core, ensures low signal
loss, thermal stability, and mechanical reliability, making it
ideal for high-frequency RF designs.
2. Features and Benefits of RO4830 Plus Material
The RO4830 Plus laminate is the latest innovation from Rogers
Corporation, offering optimized performance for millimeter wave
automotive radar sensors while maintaining a low cost and
environmentally friendly design.
Key Features of RO4830 Plus:
- Dielectric Constant (Dk): 3.0 ± 0.04 at 10GHz, ensuring precise and consistent signal
propagation.
- Dissipation Factor (Df): 0.0015 at 10GHz, ensuring low signal distortion and high
efficiency.
- Thermal Properties: Thermal Conductivity: 0.5 W/mK, providing efficient heat
dissipation.
- Glass Transition Temperature (Tg): 285°C, ensuring thermal
stability in high-temperature environments.
- CTE (Coefficient of Thermal Expansion):
- X-axis: 46 ppm/°C
- Y-axis: 47 ppm/°C
- Z-axis: 56 ppm/°C, ensuring dimensional stability and reliability.
- Moisture Resistance: Ultra-low moisture absorption of 0.02%, ensuring stable performance
in humid environments.
Key Benefits of RO4830 Plus:
- Low Insertion Loss: Optimized for millimeter wave applications, with an insertion loss
of 1.5 dB/inch for 5mil laminates at 77 GHz.
- Stable Dielectric Properties: Consistent within-sheet Dk and Df values ensure precise performance
across a wide range of frequencies.
- Compatibility with Standard FR-4 Processes: Reduces production costs by eliminating the need for specialized
equipment.
- Excellent Laser Drilling Performance: Ideal for advanced PCB designs requiring precise vias.
- Environmentally Friendly: PFAS-free and UL-94 V0 flame retardant, meeting green manufacturing
standards.
3. Applications of the RO4830 Plus 2-Layer PCB
The RO4830 Plus 2-Layer PCB is specifically designed for millimeter
wave automotive radar sensors and other high-frequency RF
applications. Its unique material properties make it suitable for a
variety of advanced designs.
Typical Applications:
76-81 GHz Automotive Radar Sensors
Optimized for corner radar and other radar-based systems in
autonomous vehicles.
Patch Antennas for Millimeter Wave Radar Sensors
Provides stable and efficient signal propagation for high-frequency
patch antennas.
RF Feed Networks for Wave Guide Antennas
Ensures precise and low-loss signal routing in RF feed networks.
RF Intermediate Frequency (IF) Layer for Multi-Chip Radar Designs
Ideal for high-precision radar systems requiring consistent
dielectric performance.
4. Why Choose Bicheng Technologies Limited?
At Bicheng Technologies Limited, we are committed to delivering
innovative PCB solutions for high-performance RF and millimeter
wave applications. The RO4830 Plus 2-Layer PCB exemplifies our
expertise in cutting-edge materials and precision manufacturing.
Why Partner with Us?
Expertise in High-Frequency PCBs: We specialize in PCBs for RF, microwave, and millimeter wave
applications.
Uncompromising Quality Standards: All PCBs are manufactured to IPC-Class-2 standards and undergo 100%
electrical testing.
Global Availability: We deliver worldwide, ensuring timely support for your projects.
Customer-Centric Approach: Our team is dedicated to providing tailored solutions that meet
your specific requirements.
For technical inquiries or assistance, feel free to contact me,
Sally, at sales30@bichengpcb.com. I am happy to help you find the perfect PCB solution for your
application.
