FIELD: physics.
SUBSTANCE: anti-conflict system of radio-frequency identification consist of a transceiver (reading unit) with the first antenna, forming examinational radio-frequency impulses on the carrier frequency f0, and on the frequency f0i SHF radio-frequency identification marks (RIM), each of which contains an antenna, field-effect transistor and rectifier. Transceiver contains a second antenna, which is subsequently connected through the band-pass or band-elimination filter and the antenna switch connected to the head end of the receiving part of the reader unit, and as each SHF RIM a SHF passive RIM (PRIM) is used, which is supplied with a delay line (DL) on the surface acoustic wave (SAW), made in the form of an acoustic line placed on the working surface of the input, output and the controlling inter-digital transducer placed between them, with a band filter.
EFFECT: exclusion of imposition of response signals during object identification due to microelectronic circuits with band filters tuned to different frequencies.
7 cl, 3 dwg
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