Encoded SAW RFID tags and sensors for multi-user detection using IDT finger phase modulation

   
   

A group of SAW RFID tags or sensors each has a transducer with interdigitated fingers, a different set of fingers in each tag or sensor being reversed in phase to cause the tag or sensor to provide a unique identifier in a returned impulse response produced by the tag or sensor when interrogated by an interrogation signal.

Un grupo de etiquetas o de sensores de la SIERRA RFID que cada uno tiene un transductor con interdigitated dedos, un diverso sistema de dedos en cada etiqueta o el sensor que era invertido en fase para hacer la etiqueta o el sensor proporcionar un identificador único en una respuesta vuelta del impulso producida por la etiqueta o el sensor cuando era interrogado por una señal de la interrogación.

 
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