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http://dx.doi.org/10.5515/KJKIEES.2007.18.6.602

Study on Characteristics of the Forward Link Signal for the UHF RFID Reader  

Kim, Do-Yun (Department of Electrical and Electronic Engineering, Yonsei University)
Jang, Byung-Jun (Department of Electronics Engineering, Kookmin University)
Yoon, Hyun-Goo (Department of Computer and Electronic Engineering, Myongji College)
Park, Jun-Seok (Department of Electronics Engineering, Kookmin University)
Yook, Jong-Gwan (Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.18, no.6, 2007 , pp. 602-611 More about this Journal
Abstract
In this paper, the forward link of UHF RFID system is modeled in accordance with the EPCglobal class 1 generation 2(EPCglobal C1G2) UHF Radio-Frequency Identity protocol specification at $860{\sim}960MHz$. Based on the constructed model, characteristics on the forward link signal for the EPCglobal C1G2 RFID reader are simulated with the help of a MATLAB softwarein order to extract the design parameters of a transmit digital filter which meets the Korean RFID regulations. Herein, the forward link model is consisted of PIE source coding, transmit digital filter, modulation, local oscillator, and antenna. From the simulation results, the ranges of three design parameters(roll-off factor, cutoff frequency, the number of tabs) for transmit digital filter are obtained with different modulation techniques and the Tari(type a reference interval) values. Finally, DSB/SSB-ASK modulation technique can not satisfy the EPCglobal C1G2 specification when Tari equals to $6.25{\mu}sec$ in a multiple-reader environment. Consequently this paper can provide a guideline for design parameters of a RFID reader as well as the basic scheme of analyzing frequency interference problems in RFID environments, including multiple-reader and dense-reader environments.
Keywords
UHF RFID; Digital Filter; EPCglobal C1G2 Speification; Frequency Interference; Multiple-Reader Environment; Dense-Reader Environment;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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