F4BME245 High Frequency Laminates Copper Clad Sheet

F4BME245 is manufactured through a scientifically formulated process and strict pressing techniques, utilizing fiberglass cloth, polytetrafluoroethylene (PTFE) resin, and PTFE film. Its electrical performance is enhanced compared to F4B, primarily reflected in a wider dielectric constant range, lower dielectric loss, increased insulation resistance, and improved stability, making it a viable alternative to similar international products.

F4BM and F4BME share the same dielectric layer but differ in the copper foil used: F4BM is paired with ED copper foil, suitable for applications without PIM requirements; F4BME is paired with reverse-treated RTF copper foil, offering excellent PIM performance, more precise circuit control, and lower conductor loss.

F4BM and F4BME achieve precise dielectric constant control by adjusting the ratio between PTFE and fiberglass cloth, ensuring low loss while enhancing material dimensional stability. A higher dielectric constant corresponds to a higher fiberglass ratio, resulting in better dimensional stability, lower coefficient of thermal expansion (CTE), improved thermal drift performance, and relatively increased dielectric loss.

Product Features

• DK2.45
• Low loss
• F4BME paired with RTF copper foil for excellent PIM performance
• Diverse size options for cost efficiency
• Radiation resistance, low outgassing
• Commercial availability, high-volume production, cost-effective

Typical Applications

• Microwave, RF, radar systems
• Phase shifters, passive components
• Power dividers, couplers, combiners
• Feed networks, phased array antennas
• Satellite communications, base station antennas

Company Profile

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen China, severing cellular base station antenna, satellite, high frequency passive components, microstrip line and band line circuit, millimeter wave equipment, radar systems, digital radio frequency antenna and other fields worldwide for 18 years. Our high frequency PCBs are mainly built on 3 high frequency material brands: Rogers Corporation, Taconic and Wangling. Dielectric constant ranges from 2.2 to 10.2 etc.

Bicheng PCB is headquartered in Shenzhen, a city with great economic vitality. Based in China, we adhere to the philosophy of servicing small and medium sized companies offering variety of circuit boards to meet the demands of market.

Main Business & PCB Applications

We maintain the highest standards which support products that exhibit exceptional quality, performance and reliability. We also have divisions of FR-4 circuit board, flexible circuits and metal core PCBs featured as prototypes, small runs to mass production. We actively research and build such high value added PCB projects as HDI, quick turn, impedance control, heavy copper and backplane board etc. This has made our PCB products generate an effective prolongation and complementation, as well as formation of integrated products line ranging from low-end to high-end.The circuit boards are used in the industries of home appliances, portable and consumable electronics, medical filed, aerospace as well as telecommunications etc.

Main Material Partners