10mil F4BTME350 Substrate 2-Layer Ultra-Thin Low Loss RF PCB

This custom F4BTME350 PCB is an ultra-thin high-frequency circuit board optimized for modern 4G/5G base station antennas, satellite communication, aerospace equipment, and multi-scenario RF/microwave modules. With an ultra-slim 0.3mm finished thickness and professional F4BTME350 nano-ceramic filled PTFE substrate, this board delivers stable low-loss signal performance and industry-grade ultra-low PIM (＜-160 dBc) characteristics. Manufactured with precise 6/8 mil fine trace/space, 0.25mm micro-hole design, immersion gold surface finish, black top solder mask and white top silkscreen, the 89.77mm × 45.16mm PCB strictly follows IPC-Class-2 standards and undergoes 100% full electrical testing before shipment. It is a reliable high-frequency PCB solution for low-noise amplifiers, phased array antennas, automotive radar and high-power RF component projects worldwide.

PCB Specifications

This 2-layer F4BTME350 high-frequency PCB adopts a pure through-hole structure with no blind vias, ensuring clean and stable high-frequency signal transmission. All mechanical and electrical parameters are strictly calibrated for precision microwave circuit fabrication.

2-Layer PCB Stack-up Structure

The symmetrical ultra-thin stack-up features a 10mil F4BTME350 core dielectric layer, maintaining balanced mechanical stress and highly consistent dielectric performance for high-frequency microwave signal transmission.

PCB Statistic

This prototype PCB is designed with compact circuit distribution, matching the layout requirements of miniaturized RF modules and antenna feed networks. Standard Gerber RS-274-X files support accurate prototyping and batch production.

F4BTME350 Material Overview

The F4BTME series laminates are manufactured through a meticulous process that involves the scientific formulation of glass fiber cloth, nano-ceramic fillers, and polytetrafluoroethylene (PTFE) resin. These substrates are built upon the F4BM dielectric layer and incorporate high dielectric constant and low loss nano-ceramics. This integration results in enhanced dielectric constant, superior heat resistance, reduced thermal expansion coefficient, increased insulation resistance, and improved thermal conductivity, all while maintaining low loss characteristics. Furthermore, F4BTME laminates are specifically paired with reverse-treated RTF copper foil, providing exceptional performance in terms of PIM, precise line control, and minimized conductor loss.

F4BTME350 Material Features

Tailored for commercial and aerospace high-frequency scenarios, this F4BTME350 ultra-thin PCB solves common pain points of conventional RF boards:

Stable High-Frequency Performance: Fixed Dk 3.5 and low Df loss deliver consistent signal performance across 10GHz to 20GHz, avoiding frequency drift for 5G base station and satellite communication devices.

Ultra-Low PIM Stability: PIM lower than -160 dBc eliminates passive intermodulation interference, ensuring pure signal output for phased array antennas and low-noise amplifier modules.

Superior Thermal & Dimensional Stability: Ultra-low X/Y-axis CTE and low thermal Dk coefficient maintain stable electrical and mechanical performance under extreme temperature changes.

Low Conductor Loss & Fine Line Support: Matched with reverse-treated RTF copper foil, it supports precise line control and minimizes signal loss for high-power RF components.

High Environmental Adaptability: 0.05% ultra-low moisture absorption ensures reliable operation in outdoor base station, aerospace and vehicle radar environments.

Strict Deliver Quality: IPC-Class-2 manufacturing standard + 100% pre-shipment electrical test guarantees zero circuit defects and stable batch consistency.

Applications

F4BTME350 2-layer ultra-thin PCBs are widely adopted in high-precision, low-interference RF and microwave systems:

• 4G/5G base station antennas and PCS/PCN large-format antenna feed networks
• Low Noise Amplifiers (LNAs), LNBs/LNCs and high-power RF amplifiers
• Phased array antennas and phase-sensitive antenna systems
• Satellite communication terminals, aerospace and cabin equipment
• Microwave RF modules, automotive radar and military radar systems
• RF passive components: power dividers, couplers and combiners

Conclusion

This custom F4BTME350 2-layer ultra-thin rigid PCB provides cost-effective, high-stability solutions for commercial 5G communication, satellite and aerospace RF projects. Built with genuine F4BTME350 nano-ceramic PTFE substrate and RTF copper foil, it features low signal loss, ultra-low PIM and excellent thermal stability. All boards are fully electrically tested and compliant with IPC-Class-2 standards. We support global shipping and flexible customization for RF prototype verification and mass production orders.