Polarisation

Polarisation describes the orientation of the electric field of an electromagnetic wave and influences how well a tag is detected by an RFID antenna. If the orientation of the antenna and tag matches well, the signal is transmitted more effectively. If the alignment is unfavourable, detection quality and read range decrease. This is particularly relevant in systems operating in the ultra-high frequency range, because moving or differently aligned objects cannot always be read equally well. The choice between linear and circular polarisation is therefore an important part of the technical design. The right alignment improves the stable detection of containers, cartons or pallets in real material flow processes.

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