Rogers RT/duroid® 5880 is a premium high-frequency PCB material renowned for its exceptional performance in RF and microwave circuits. It is extensively used in applications such as satellite communication, radar systems, and high-frequency sensors. Below are the main characteristics of RT/duroid® 5880:
1. Dielectric Constant (Dk) and Stability
RT/duroid® 5880 has a low dielectric constant of approximately 2.20, which remains stable over high-frequency ranges. This stability is crucial for the propagation of high-frequency signals as it reduces signal delay and maintains phase consistency. The stable dielectric constant allows engineers to achieve precise impedance control and matching in high-frequency circuit designs.
2. Low Dissipation Factor (Df)
The material has an extremely low dissipation factor, typically around 0.0009. A low Df means minimal energy loss during signal transmission, enhancing the overall system efficiency. This property is particularly beneficial in high-speed data transmission and high-frequency communication applications where maintaining signal integrity and minimizing attenuation are paramount.
3. Very Low Moisture Absorption
RT/duroid® 5880 boasts a very low moisture absorption rate, generally under 0.02%. Low moisture absorption ensures that the material maintains stable electrical properties even in humid or changing environmental conditions. This is especially valuable for applications operating in harsh climates, such as maritime and military communication devices, ensuring long-term circuit stability and reliability.
4. Coefficient of Thermal Expansion (CTE) and Thermal Stability
RT/duroid® 5880 has a low CTE, contributing to its dimensional stability under temperature variations. This characteristic is crucial since frequent temperature changes can affect the physical dimensions and electrical performance of the circuit. With a CTE similar to copper, RT/duroid® 5880 integrates well in multilayer PCB structures, reducing the risk of delamination and electrical failures due to thermal stress.
5. Excellent Mechanical Properties
Composed of a PTFE composite reinforced with glass microfibers, RT/duroid® 5880 provides high mechanical strength and flexibility. It is easy to process and shape, making it suitable for complex circuit designs such as stripline and microstrip structures. Its robust mechanical properties ensure stability even under vibration and physical impact conditions.
6. Ease of Processing
Despite its high-performance capabilities, RT/duroid® 5880 is relatively easy to work with. It performs well during drilling and cutting, reducing the likelihood of manufacturing defects. This compatibility with traditional PCB manufacturing processes makes it cost-effective and straightforward to produce.
7. Chemical Resistance and Durability
RT/duroid® 5880 shows excellent resistance to common chemical solvents, etchants, and cleaning agents. This feature ensures that the material remains unaffected during manufacturing and long-term use, enhancing its durability and consistent performance over time.
8. Wide Frequency Application Range
RT/duroid® 5880 is suitable for applications ranging from microwave to millimeter-wave frequencies, often used in frequencies exceeding 10 GHz. Its outstanding high-frequency performance makes it ideal for precision RF and microwave applications, such as high-frequency sensors and high-speed communication devices.
9. Environmental Compliance and Sustainability
RT/duroid® 5880 adheres to lead-free soldering and environmental regulations, making it an environmentally friendly option. It is free of harmful substances and complies with standards like RoHS and REACH, catering to markets with strict sustainability and environmental safety requirements.
In conclusion, Rogers RT/duroid® 5880, with its low dielectric constant, low loss, minimal moisture absorption, and excellent mechanical properties, stands out as an ideal choice for high-frequency circuit designs. It is widely applied in microstrip and stripline circuits, millimeter-wave applications, military radar systems, and missile guidance systems.