RFID Transponders RF Emissions in Aircraft Communication and Navigation Radio Bands

Summary radiated in the plane\’s communication and navigation bands are presented for the various active radio frequency identification (RFID). The ….

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The Category L is specified for aircraft equipment and wiring located in areas far from apertures of the aircraft (such as windows) and from radio receiver’s antennas. Category M is defined for equipment and wiring located in areas where apertures are electromagnetically significant and not in direct view of radio receiver’s antenna. Category M is suitable for areas such as in the passenger cabin or in the cockpit of a transport aircraft. The field limits were converted to Effective Isotropic Radiated Power (EIRP) for the comparison.

The results indicate that in at least five cases, involving three tags, the peak emissions exceed the RTCA/DO-160E Category L limits in Band 2 and Band 3. In one instant, the emissions exceeded the limit by 35 dB in the Band 2 (covering GS band). These cases warrant additional studies to determine the true interference thresholds for the specific interference signals if they are to be used during flights. The efforts in [5] and [6] develop the process for that threshold determination.

Download RFID Transponders RF Emissions in Aircraft Communication and Navigation Radio Bands pdf from ntrs.nasa.gov, 6 pages, 193.54KB.
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