E.A. Chistyakov1

1 MIREA – Russian University of Technology (Moscow, Russia)

1 chistyakov@mirea.ru

The direct connection between passive RFID tags is extremely unstable and strongly depends on the relative position of the tags and the position of the external power source, which limits its practical application. Goal – evaluate the performance of communication between tags and find the conditions under which the key parameter of communication quality, the modulation depth, reaches its maximum.

It has been found that the depth of modulation and, consequently, the reliability of communication can be significantly improved due to the optimal choice of the position of the radio frequency source and the mutual orientation of the labels. The simulation results are confirmed by measurements. The results obtained make it possible to predict and optimize the quality of communication when designing real systems based on passive tags, increasing their reliability and noise immunity. A promising direction is the use of complex loads to further improve performance.

Chistyakov E.A. Enhanced modulation depth for disordered tags in communication systems between passive RFID-tags. Achievements of modern radioelectronics. 2025. V. 79. № 12. P. 82–87. DOI: https://doi.org/10.18127/j20700784-202512-14 [in Russian]

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