Fiberglass reinforced plastic (FRP/Glass Reinforced Plastic)
Corrosion resistant, salt spray/acid and alkali resistant, lightweight, high strength, stable dielectric properties (dielectric constant approximately 3.5–4.5), and virtually no interference with wireless signals.
Aluminum/Copper: Commonly used in conductive components such as radiators and reflectors due to their good conductivity and ease of processing; often silver-plated to improve high-frequency reflection efficiency.
Stainless Steel: Used in environments without strong corrosion, possessing good mechanical strength and moderate cost, suitable for general industrial radar or structural components.
Polytetrafluoroethylene (PTFE): Extremely low dielectric constant (≈2.1), ultra-low loss, resistant to -190℃ to +260℃, resistant to strong acids and alkalis, self-lubricating and anti-fouling.
Liquid crystal polymer (LCP) is suitable for 5G millimeter wave bands (>15GHz), with low loss, high flexibility, and is suitable for miniaturized flexible circuits.