In the demanding world of RF and microwave electronics, signal integrity and material stability are paramount. Our 2-layer rigid PCB, constructed with Wangling's advanced F4BM220 PTFE/fiberglass laminate, delivers exceptional high-frequency performance for critical communication and radar systems. With its ultra-low loss characteristics and precise dielectric properties, this PCB is engineered to meet the rigorous demands of modern RF applications.

Precision Construction & Key Specifications

Base Material: High-performance F4BM220 PTFE/fiberglass composite for superior RF characteristics

Layer Count: 2 layers with 4/6 mil trace/space capability

Board Dimensions: 130.5mm × 103mm (±0.15mm tolerance)

Minimum Hole Size: 0.3mm (mechanical drilling)

Finished Thickness: 1.7mm (1.575mm core with 35μm copper layers)

Surface Finish: ENIG (Electroless Nickel Immersion Gold) for reliable solderability

Via Plating Thickness: 20μm for durable interconnects

Electrical Testing: 100% tested prior to shipment

Optimized Stackup for RF Performance
The 2-layer stackup is carefully engineered for maximum signal integrity:

Top Layer: 35μm ED copper foil

Core: 1.575mm F4BM220 laminate (PTFE/fiberglass composite)

Bottom Layer: 35μm ED copper foil

Special Design Considerations:

No solder mask or silkscreen to minimize dielectric interference

All vias are through-hole (no blind/buried vias)

Clean surface finish for optimal RF performance

Why Choose F4BM220 Material?
Superior High-Frequency Characteristics

Dielectric Constant (Dk): 2.2±0.04 @ 10GHz - exceptional stability for precise impedance control

Ultra-Low Loss: Dissipation Factor (Df) of 0.001 at 10GHz for minimal signal degradation

Thermal Stability: CTE of 25ppm/°C (x-axis), 34ppm/°C (y-axis) for dimensional reliability

Moisture Resistance: Absorption ≤0.08% for consistent performance in varied environments

Enhanced Reliability Features
UL-94 V0 flammability rating for safety compliance

Excellent temperature resistance (-55°C to 288°C operating range)

Thermal coefficient of Dk: -142ppm/°C (-55°C to 150°C) for stable performance

Ideal Applications
This PCB is specifically designed for high-frequency applications including:

Microwave and RF communication systems

Phase shifters and power dividers

Satellite communication equipment

Base station antennas and feed networks

Radar systems and phased array antennas

Couplers and combiners

Quality Assurance & Global Availability
We maintain strict quality standards to ensure reliable performance:

Compliant with IPC-Class-2 standards

Accepts Gerber RS-274-X artwork files

Worldwide availability with reliable shipping options

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