Introduction to Rogers RO4830
The Rogers RO4830 is a high-frequency laminate that has been specifically engineered to address the challenges faced in price-sensitive applications, particularly within the 76-81 GHz frequency range, commonly associated with automotive radar sensors. With a dielectric constant of 3.2 at 77 GHz, it delivers superior performance compared to conventional PTFE-woven glass laminates. The use of LoPro reverse treated copper foil cladding contributes to an impressive insertion loss of just 2.2 dB per inch at 77 GHz, making it an ideal choice for demanding RF applications.

Key Features
The Rogers RO4830 offers several distinctive features that set it apart from other materials:

Dielectric Constant (Dk): With a value of 3.24 at 77 GHz, the RO4830 ensures stable electrical performance across a range of frequencies.

Dissipation Factor: A low dissipation factor of 0.0033 at 10 GHz minimizes signal loss, enhancing overall circuit efficiency.

Thermal Stability: The material exhibits a thermal coefficient of dielectric constant of -30 ppm/°C, ensuring consistent performance under varying temperature conditions.

Flame Retardant Rating: The UL 94 V-0 rating indicates excellent flame resistance, contributing to safety in various applications.

Optimized Material Composition: An advanced composite system of filler, resin, and glass enhances the PCB's electrical and mechanical properties.

Benefits of the Rogers RO4830 PCB
The Rogers RO4830 PCB is designed to offer a range of benefits that appeal to manufacturers and designers alike:

Cost Efficiency: Compared to PTFE laminate options, the RO4830 significantly reduces overall manufacturing costs, making it an attractive choice for budget-conscious projects.

Oxidation Resistance: The materials used in the RO4830 are highly resistant to oxidation, ensuring longevity and reliability in various environmental conditions.

Enhanced Drilling Performance: The PCB supports good laser drilling performance, allowing for precise manufacturing and consistent results across the sheet.

Seamless Integration: The RO4830 can be fabricated using standard FR-4 processes, making it suitable for multi-layer board designs that often include FR-4 layers.

PCB Construction and Specifications
This 2-Layer Rigid PCB features a well-defined construction that follows industry standards:

Stackup: The stackup consists of two layers: 35 μm of copper, followed by a 0.24 mm (9.4 mil) core of Rogers RO4830 material, and another 35 μm layer of copper.

Board Dimensions: The PCB measures 50.1 mm x 78.3 mm, with a tolerance of ±0.15 mm, allowing for precise integration in various applications.

Minimum Trace/Space: Specifications include a minimum trace and space of 5/7 mils, ensuring high-density designs without compromising performance.

Finished Thickness: The finished board thickness is 0.4 mm, with an outer copper weight of 1 oz (1.4 mils).

Surface Finish: An immersion silver surface finish is applied, providing excellent conductivity and protection against environmental factors.

Quality Assurance
To maintain high reliability, each PCB adheres to IPC-Class-2 quality standards. Each board undergoes 100% electrical testing before shipment, ensuring that only fully functional products reach customers. This commitment to quality not only minimizes the risk of field failures but also enhances customer satisfaction.

Typical Applications
76-81 GHz Automotive Radar Sensors: The PCB is ideally suited for modern automotive applications, providing critical performance in radar sensing technology.

This Rogers RO4830 2-Layer Rigid PCB is positioned as a reliable, high-performance solution tailored to meet the demands of advanced electronic applications.