RF Antenna Housing

Resin Selection

Engineering plastics selected for these components must possess low dielectric loss and high mechanical durability. When designing an rf antenna housing, engineers often select materials such as polycarbonate, polybutylene dialectate, or modified polyphenylene ether. These polymers offer high impact strength and resist environmental cracking while maintaining electrical neutrality.

Adding glass fiber reinforcement must be done carefully, as the fiberglass can alter the signal propagation through the plastic wall.

Moulding Parameter

Injection molding conditions must be tightly controlled to prevent structural variations that can disrupt high frequency signals. The production of an rf antenna housing requires a uniform wall thickness and a consistent density across the entire part. Variations in mold temperature or injection speed can create knit lines or localized resin concentration zones that refract or scatter the electromagnetic waves.

To prevent this, the runner and gate system must be optimized to ensure a smooth and balanced flow of the melt.

Performance Loss

Poor molding practices and incorrect material moisture levels during processing can lead to a severe drop in signal transmission efficiency. In an improperly dried batch of resin, trapped moisture causes cosmetic defects and microscopic bubbles within the molded wall of the rf antenna housing. These internal micro-voids act as barriers that scatter the RF signals, causing high transmission losses and reduced range.

This defect increases scrap rates and forces the manufacturer to implement rigorous electrical testing on every produced unit.