Fully integrated passive UHF RFID transponder IC with a sensitivity of &amp;#x2212;12 dBm

Shen, Jinpeng; Wang, Xinan; Wang, Bo; Liu, Shan; Li, Shoucheng; Ruan, Zhengkun; Zhang, Xiangrong; Cao, Ying

doi:10.1109/iscas.2013.6571839

Cited by 5 publications

(1 citation statement)

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“…The regulator uses an operational amplifier connected as a LDO topology to produce a supply voltage V DD which equals to V REF. Moreover, in the regulator, a dynamic tail current source is utilized to adjust the bandwidth of the opamp in the regulator [6]. The dynamic adjustments is realized by adding MN7, whose gate voltage is biased by MNS in the limiter.…”

Section: Referencementioning

confidence: 99%

A high-efficient energy harvest chain for ultra-low power passive UHF RFID tags

Lin

Wang

et al. 2014

2014 12th IEEE International Conference on Solid-State and Integrated Circuit Technology (ICSICT)

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This paper presents a high-efficient energy harvest chain for ultra-low power passive UHF RFID tags. In this design, a high-efficiency differential-drive CMOS rectifier is adopted, a novel voltage limiter is used to provide a stable limiting voltage against temperature and process variation, and a voltage reference using peaking current source together with a high performance regulator with dynamic tail current source are utilized to meet the low-power low-voltage requirement. Measurement results show that the total current dissipation of our proposed energy harvest chain is less than 2.2511A with a peak power conversion efficiency (PCE) of 51.34%@-10dBm. This high-efficient energy harvest chain is designed and implemented in TSMC 0.18 11 m CMOS process with an area of 290l1m x 140l1m.

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Section: Referencementioning

confidence: 99%