Performance of Rogers 3003
Rogers 3003 is a ceramic-filled PTFE-based material designed for RF and microwave applications, providing low dielectric loss and excellent high-frequency performance. Key characteristics include:

Dielectric Constant (Dk): 2.92 at 10 GHz, which enables faster signal propagation, ideal for high-frequency signal transmission.
Dielectric Loss (Df): Extremely low at 0.0013 at 10 GHz, ensuring minimal signal loss, making it perfect for long-distance or high-frequency applications.
Thermal Expansion Coefficient (CTE): Low at 17 ppm/°C, maintaining dimensional stability in varying temperatures.
Thermal Conductivity: 0.5 W/mK, meaning additional thermal management may be required for high-power applications.
Frequency Range: Suitable for applications up to 40 GHz, used in microwave circuits, RF components, antennas, and low-loss transmission lines.
Performance of Rogers 4003C
Rogers 4003C is a ceramic-filled hydrocarbon resin material designed to offer FR4-like processability with enhanced high-frequency electrical characteristics. Key characteristics include:

Dielectric Constant (Dk): 3.38 at 10 GHz, suitable for medium to high-frequency applications.
Dielectric Loss (Df): 0.0027 at 10 GHz, slightly higher than 3003 but still offering low loss for reliable signal performance.
Thermal Expansion Coefficient (CTE): Higher at 46 ppm/°C, but compatible with FR4, making it suitable for multilayer PCB designs.
Thermal Conductivity: 0.5 W/mK, similar to 3003, requiring effective heat dissipation strategies in high-power applications.
Frequency Range: Suitable for 1 GHz to 10 GHz, used in wireless communications, RF modules, and microwave systems.
Key Differences Between Rogers 3003 and 4003C
Material Type: Rogers 3003 is PTFE-based, offering superior high-frequency performance, while 4003C is a hydrocarbon resin designed for ease of manufacturing.
Dielectric Constant: Rogers 3003 (2.92) is lower than 4003C (3.38), meaning 3003 is more suitable for higher-frequency applications.
Dielectric Loss: Rogers 3003 has a lower loss (0.0013) compared to 4003C (0.0027), making 3003 ideal for applications requiring minimal signal degradation.
Frequency Range: Rogers 3003 supports frequencies up to 40 GHz, while 4003C is limited to 1-10 GHz.
CTE: Rogers 3003 has a lower CTE, making it better suited for high-temperature environments, while 4003C is more compatible with FR4 and easier to integrate into mixed-material PCB designs.
Processing: Rogers 3003 is more challenging to process due to its PTFE base, requiring special drilling and lamination techniques. In contrast, Rogers 4003C is easier to process and more similar to FR4, making it more cost-effective for mass production.
Rogers 3003 excels in ultra-high-frequency applications requiring low signal loss, making it ideal for satellite communications, radar, and microwave components. On the other hand, Rogers 4003C offers a balance of high-frequency performance and ease of processing, suitable for wireless communication devices and RF applications.