A reliable demodulator and a power regulation circuit with an accurate and small-size voltage reference in UHF RFID

Du, Yongqian; Zhang, Yiqi; Li, Xiaoming; Liu, Weifeng; Qi, Zengwei; Yin, Yue

doi:10.1016/j.mejo.2012.10.008

Cited by 9 publications

(4 citation statements)

References 16 publications

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“…The prototype of current reference circuit adopts the same methodolgy of the authors' previous work [12], in which the ZTC current reference I ref for the OSC is generated by the summing of the current proportional to absolute temperature (I PTAT ) and the current complementary to absolute temperature (I CTAT ).…”

Section: Other Circuits Designmentioning

confidence: 99%

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A UHF RFID chip solution with new oscillator calibration scheme and 16k bits EEPROM

Zhang

et al. 2016

IEICE Electron. Express

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A UHF RFID tag chip solution with a new oscillator calibration scheme and an EEPROM solution with memory capacity as big as 16k bits was presented. The new calibration scheme adopts a calibration command compatible with EPC Protocol, then, a field and low cost oscillator calibration is realized. To reduce the read power of the EEPROM when the storage capacity is increased to 16k bits, a global power management strategy is adopted. Thus, the capacitance load for read operation is reduced, which will result in low power consumption, and the total current consumption for the read operation is 2.26 µA. The proposed calibrated oscillator and 16k bits EEPROM were then integrated and verified in a full UHF RFID tag chip. The achieved read communication range is 3 m. The test results show that the calibration error of the oscillator is 5.7%, which can be further improved by adopting a large current switch array with each current switch carry smaller calibration current I ref /M.

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Section: Other Circuits Designmentioning

confidence: 99%

“…The demodulator also adopts almost the same circuit as illustrated in the author's previous work [12] for its good performance in rejecting distortion and error demodulation, which can guarantee a good T ref precision, as shown in Fig. 6.…”

Section: Other Circuits Designmentioning

confidence: 99%

A UHF RFID chip solution with new oscillator calibration scheme and 16k bits EEPROM

Zhang

et al. 2016

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

“…The sub-threshold methodology has been verified as a realistic low-power solution [5] [6] . The well-proved exponential I-V curvature of MOS transistor is the base for sub-threshold circuit design [5][6][7] [8].…”

Section: Introductionmentioning

confidence: 99%

“…The above exponential I-V characteristic has been verified in low noise amplifier (LNA), voltage controlled oscillator (VCO) and voltage reference with satisfactory performance [5][6] [8] .…”

Section: Introductionmentioning

confidence: 99%