RFID Polarization: Linear vs. Circular Explained
Metalcraft VideosRFID Polarization: Linear vs. Circular Explained
When purchasing an RFID reader, choosing the right antenna polarization is crucial to avoid costly mistakes. In this video, Colynn Black explains the differences between linear and circular polarization and how they affect RFID performance.
- Linear Polarization transmits RFID signals on a single plane (horizontal or vertical), providing greater read distance but requiring alignment with the tag’s orientation for optimal performance. If the tag’s orientation differs from the antenna, read range will be significantly reduced.
- Circular Polarization offers more flexibility, with signals transmitted in a spiral pattern (either right-hand or left-hand), allowing consistent reads regardless of tag orientation. However, the read distance is shorter compared to linear polarization.
Colynn advises considering both polarization types carefully based on your application’s needs, as linear antennas offer longer read ranges, while circular antennas provide better versatility. Understanding these factors can help you make the best choice for your RFID setup. Watch the video to learn more!