Rogers 4350B Large-Size Antenna PCB | 2-Layer High Frequency Immersion Gold Board (90×650mm)

Rogers 4350B Large-Size Antenna PCB | 2-Layer High Frequency Immersion Gold Board (90×650mm)

Rogers RO4350B is a industry-standard high-frequency PTFE-based laminate, widely recognized for its stable dielectric properties and ultra-low signal loss, making it the preferred substrate for RF antenna, microwave and millimeter-wave applications. We specialize in manufacturing custom large-format Rogers 4350B antenna PCBs, supporting extra-long size designs up to 650mm in length to meet the needs of base station antennas, phased array systems and high-power RF front-end products.

Core Product Specifications

PCB Material: Rogers RO4350B high-frequency PTFE laminate

Board Dimensions: 90mm × 650mm (extra-long large-format custom size)

Surface Finish: Immersion Gold (ENIG) for stable RF contact performance

Copper Weight: 1OZ standard copper thickness, optimized for high-frequency signal transmission

Layer Count: 2-layer double-sided high-frequency board design

Key Performance Advantages

Stable High-Frequency Material Performance

Rogers RO4350B features a stable dielectric constant (Dk=3.48 @ 10GHz) and ultra-low dissipation factor (Df=0.0037 @ 10GHz), with minimal parameter fluctuation across frequency, temperature and humidity ranges. For long-size antenna boards, this consistency ensures uniform signal transmission performance across the full board length, avoiding gain deviation and signal distortion caused by material property changes.

Large-Size Manufacturing Capability

The 90×650mm extra-long format is custom-designed for integrated antenna arrays, eliminating the need for multi-board splicing that causes signal loss and assembly errors. We strictly control board flatness and dimensional accuracy during production to ensure consistent line impedance and assembly fit for large-size high-frequency boards.

Immersion Gold Surface Treatment

Immersion gold finish provides a smooth, oxidation-resistant contact surface with low contact resistance, ensuring stable electrical connection for RF antenna interfaces. It also delivers excellent solderability for SMT assembly and long-term corrosion resistance for outdoor antenna applications.

Optimized 1OZ Copper Thickness

1OZ copper weight is perfectly matched to Rogers 4350B high-frequency designs, supporting controlled impedance routing and low-loss signal transmission for RF bands, while maintaining fine line fabrication accuracy for antenna array patterns.

Typical Applications

This large-size Rogers 4350B antenna PCB is widely used in:

5G macro base station antenna arrays

Phased array radar and navigation antenna systems

High-power RF transceiver front-end modules

Satellite communication ground station antennas

Industrial IoT long-range RF antennas

Manufacturing & Quality Assurance

All Rogers 4350B antenna PCBs undergo 100% electrical open/short testing, impedance verification and appearance inspection before shipment. We implement strict process control for large-format high-frequency board fabrication, including lamination flatness management, etching line width tolerance control and immersion gold thickness consistency inspection, to ensure stable performance of mass-produced antenna boards.

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