Title :
Optimum ON/OFF resistances of the ASK modulator for passive RFID tags
Author :
Yao-Xi ; Kwon, Sungwook ; Kim, Minsu ; Kim, Hyugchul ; Cho, Hanjin ; Kim, Jihong ; Seo, Jonghyun ; Yang, Youngoo
Author_Institution :
Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon
Abstract :
In this paper, we propose optimized ON/OFF resistances for the backscattering amplitude-shift keying (ASK) modulator for a passive RFID tag considering the effective backscattered power level. Based on an analysis of power transfer between the passive RFID tag and reader, we obtain the optimal condition for the ASK modulator to maximize the harvestable power. We calculate the performance of the proposed modulator configuration that is superior to the conventional scheme.
Keywords :
amplitude shift keying; electric resistance; modulators; radiofrequency identification; ASK modulator; backscattering amplitude-shift keying modulator; on/off resistance; passive RFID tags; Amplitude modulation; Amplitude shift keying; Backscatter; Passive RFID tags; RFID tags; Radio frequency; Radiofrequency identification; Rectifiers; Resistors; Voltage;
Conference_Titel :
Microwave Conference, 2008. APMC 2008. Asia-Pacific
Conference_Location :
Macau
Print_ISBN :
978-1-4244-2641-6
Electronic_ISBN :
978-1-4244-2642-3
DOI :
10.1109/APMC.2008.4957979
