This 4-layer rigid PCB uses Rogers RT/duroid 5880 (glass microfiber reinforced PTFE composite) as the core substrate, laminated with TG170 FR-4 prepreg. Specifically designed for high-precision stripline and microstrip circuits, RT/duroid 5880 features uniform dielectric constant (panel-to-panel and wide frequency range) and low dissipation factor (applicable to Ku-band and above). With excellent dielectric properties and lead-free compatibility, it meets rigorous high-frequency transmission requirements, suitable for precision RF, microwave and millimeter wave applications.

PCB Specifications

PCB Stack-up

Rogers RT/duroid 5880 Material Introduction

Rogers RT/duroid 5880 is a high-performance PTFE-based composite laminate, renowned for its excellent dielectric properties and stable electrical performance across a wide frequency range (8 GHz to 40 GHz). It exhibits ultra-low dielectric loss, low moisture absorption, and superior thermal stability, making it an ideal choice for high-frequency RF and microwave applications. The material is fully compatible with lead-free processes and meets UL 94 V-0 flammability requirements, ensuring reliable fabrication and long-term operational stability.

The combination of PTFE matrix and reinforcing fibers endows RT/duroid 5880 with excellent mechanical properties, including high tensile and compressive strength, as well as good copper peel strength. Its low thermal expansion coefficient and stable temperature coefficient of dielectric constant ensure consistent performance under extreme temperature conditions (-50℃ to 150℃), making it suitable for harsh environment applications such as aerospace and high-reliability communication systems.

Key Material Features

Core Benefits

Ultra-low dielectric loss: tanδ down to 0.0004, minimal high-frequency signal attenuation

Stable dielectric constant: ε=2.2±0.02, enabling precise impedance control

Excellent thermal stability: Td=500℃, stable performance over wide temperature range

Low moisture absorption: 0.02%, reducing humidity-induced performance degradation

Lead-free compatible: Meets modern manufacturing requirements, eco-friendly

Superior mechanical properties: High tensile/compressive strength and copper peel strength

Flame retardant: UL 94 V-0 rating, high application safety

Wide frequency adaptability: Stable performance at 8-40 GHz for diverse RF/microwave systems

Quality Standard & Availability

Accepted Standard: Complies with IPC-Class-2, ensuring consistent quality via rigorous process control and 100% electrical verification prior to shipment.

Availability: Worldwide availability, enabling timely delivery and efficient after-sales support for international customers.

Typical Applications

Commercial airline broadband antennas

Microstrip circuits

Stripline circuits

Millimeter wave applications

Military radar systems

Missile guidance systems

Point to point digital radio antennas

Other related high-frequency applications