4G & 5G Transit Antennas are a special class of antenna designed for rail and transport industries. These applications require antennas that are certified against international railway and transit standards, such as EN 50155, EN 45525-2, EN 50124-1, NFPA 130, among others.
Transit and Railway Antennas tend to be constructed of extremely durable engineering plastics such as ASA or PEI which provide protection against mechanical stresses while remaining weatherproof and UV-resistant. Due to the challenges with replacing such antennas they are manufactured and tested to the most stringent standards, ensuring absolute performance.
Many omnidirectional planar antennas use an internal ground plane or require mounting on a metallic surface to achieve the stated VSWR and Peak Gain characteristics. When assessing suitability it is important to pay close attention to the provided 3D or polar radiation patterns, as gain often varies significantly across bands and relative orientation.