Naslov
Electromagnetic Characterization of SNR Variation in Passive Gen2 RFID System

Autori
Škiljo, Maja ; Blažević, Zoran ; Šolić, Petar ; Patrono Luigi ; Rodrigues, Joel J.P.C.

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the Ninth International Conference on Ubiquitous and Future Networks (ICUFN 2017) / - , 2017, 172-175

ISBN
978-1-5090-4749-9

Skup
The Ninth International Conference on Ubiquitous and Future Networks (ICUFN 2017)

Mjesto i datum
Milano, Italija, 04.07.2017. - 07.07.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Radio Frequency Identification (RFID) ; Software Defined Radio (SDR) ; Impedance matching ; Differential radar cross section (RCS) ; Signal to Noise Ratio (SNR)

Sažetak
Passive Gen2 RFID systems based on the wireless communication between readers and tags have become the enabling technology for Internet of Things (IoT) application. Such passive RFID tags are powered up by incident RF power and they respond back to the reader by modulating the backscattering power in terms of changing the tag IC impedance. In various environments this incident power can oscillate and have a certain influence on the power of tag signal. This may have a significant influence on the data available at the reader, especially when analyzing the multiple tag responses, which may happen at the same time (usually referred to as a collision of multiple tags). This paper associates the electromagnetic problem of chip's impedance matching with the variation of tag SNR at the reader. The simulation results depict the difference of tag's backscattering for some chip impedance states. By using fully configurable Software Defined Radio (SDR), the performances of the actual system and characterize the variation of SNR at the reader was retrieved.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

POVEZANOST RADA