CLTE High Frequency Circuit Materials Introduction CLTE high frequency laminates deliver proven dimensional stability and low planar Coefficient of Thermal Expansion (CTE), ensuring consistent performance for embedded resistors. They are among the PTFE-based laminates with the lowest performance variance available. With a long history of reliable use with resistor foil, CLTE laminates are offered with a full range of cladding options, including electrodeposited, reverse-treated copper, rolled copper foil, and more. Their field-tested performance makes them a preferred material for ground-based and airborne communications and radar systems. Key Features & Benefits Low Thermal Expansion: Planar CTE as low as 10-12 ppm/°C and Z-axis CTE of 34 ppm/°C ensure high reliability for plated through-holes. Stable Dielectric Constant: Minimal variation with temperature changes reduces stress on attached ceramic active devices. Thin Laminate Availability: Available as a reliable and consistent thin core material (down to .0003”), supporting complex multi-layer designs. Versatile Cladding & Backing: Compatible with resistor foil, various copper foils, and available with heavy metal backing (aluminum, brass, copper) for robust embedded resistor network designs. Proven Performance: Offers high plated through-hole reliability and is reliably designed for embedded resistor networks. A Piece of CLTE Laminate Typical Applications CLTE copper clad laminates are ideally suited for advanced RF and microwave systems, including: Advanced Driver Assistance Systems (ADAS) Patch Antennas Phased Array Antennas Power Amplifiers Communications and Radar Systems (Airborne and Ground-Based) Conclusion CLTE high frequency PCB materials stand as a proven, reliable solution for demanding high-frequency applications. Their exceptional dimensional stability, thermal performance, and design flexibility make them an optimal choice for engineers developing next-generation RF and microwave systems where performance consistency and reliability are paramount.
Home