Anticollision multiband RFID tag on surface acoustic waves

The theoretical and experimental results of the design of new multiband radio frequency identification tags on surface acoustic waves in the frequency range 860–960 MHz were obtained. The tag contains three interdigital transducer, combined into a single microwave line. The necessity of using the multi-interdigital transducers is shown. The possibility of synchronous detection of up to a million tags from a distance up to 20 m was demonstrated experimentally. Localization region of such tags is up to 5 m. Miniature sizes of this tag allows its wide application in logistics, aerospace and manufacturing.