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Application of Low‑Dielectric Microcellular Foamed Materials in 5G Radomes
Manufactured via a supercritical physical foaming process, this low‑dielectric microcellular foamed material draws on proprietary polypropylene foaming technology to enable precise control of cellular structure, making it suitable for 5G base‑station radome applications.
The material exhibits a dielectric constant of ≤1.1 and dielectric loss of ≤0.01. It permits transmission of high‑frequency electromagnetic waves across the 6–42 GHz band, minimising signal attenuation and ensuring stable signal transmission.
Special treatment improves its dimensional stability, and combined with its weathering resistance, it delivers long‑term outdoor protection against ultraviolet radiation, temperature fluctuations, wind and rain erosion.
Lightweight yet high‑strength, with a closed‑cell, non‑water‑absorbent structure and balanced stiffness and toughness, the material reduces the overall weight of antenna assemblies and simplifies structural design. It uses CO₂/N₂ as foaming agents and is environmentally friendly and recyclable.
Balancing protective performance with electromagnetic wave permeability, the material is suitable for 5G base‑station radomes and supports the development of 5G transmission networks.
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