A −20 dBm Passive UHF RFID Tag IC With MTP NVM in 0.13-μm Standard CMOS Process

Li, Songting; Li, Cong; Cai, Lei; Xiao, Yu; Luo, Zhongzhen; Yan, Dun; Xu, Shunqiang; Wang, Hongyi

doi:10.1109/tcsi.2020.3007952

Cited by 7 publications

(8 citation statements)

References 29 publications

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“…By comparing with repotted data in the references, it can be seen that the average power consumption of this design is 1/3000 of [4], 1/167 of [5], 1/294 of [6], and 1/3 of [7], and the average power consumption level of this demodulator is much lower than ones reported in the references. For passive UHF RFID, the ultra-low-power demodulator offers significant cost savings, high reliability and high noise immunity, making the demodulator more suitable for today's smart home and IoT detection.…”

Section: Low Power Verificationmentioning

confidence: 79%

“…Compared with the data given in the references, the power consumption value of this design is about one hundredth of the power consumption value given in the references [4][5][6] and the power consumption value of this design is about one third of the power consumption value given in the reference [7]. This paper gives specific data comparisons in Section 3.2 [8][9][10].…”

mentioning

confidence: 70%

“…In [6], the authors used a hysteresis input structure design to reduce the noise impact and a secondary amplifier to increase the input signal range, but it still has the disadvantage of high-power consumption. In [7], the authors improve the efficiency of the voltage conversion from RF port to DC interface (RF-DC) by threshold voltage compensation, leakage current suppression and dynamic voltage adjustment schemes, but consume a larger chip area.…”

Section: Introductionmentioning

confidence: 99%

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Adaptive Noise-Resistant Low-Power ASK Demodulator Design in UHF RFID Chips

Yang

et al. 2021

Electronics

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This paper presents a new signal demodulator for ultra-high frequency (UHF) radio frequency identification (RFID) tag chips. The demodulator is used to demodulate amplitude shift keying (ASK) modulated signals with the advantages of high noise immunity, large input range and low power consumption. The demodulator consists of a charge pump, an envelope detector, and a comparator. In particular, the demodulator provides a hysteresis input signal to the comparator through two envelope detectors, resulting in better noise immunity. The demodulator is based on a standard 0.13 µm CMOS process. The demodulator is suitable for demodulating high frequency signals at 900 MHz with a data rate of 128 Kbps and can operate up to 78 °C. The input signal has a peak of 1.2 V and consumes as little as 113.6 nW. The demodulator also has a noise immunity threshold of approximately 3.729 V.

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Section: Low Power Verificationmentioning

confidence: 79%

mentioning

confidence: 70%

Section: Introductionmentioning

confidence: 99%

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Adaptive Noise-Resistant Low-Power ASK Demodulator Design in UHF RFID Chips

Yang

et al. 2021

Electronics

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“…EEPROM can perform memory read and write operations. Still, because it requires a special process and a multilayer mask, a differential structure MTP memory cell compatible with the standard CMOS process is designed for these deficiencies in this paper concerning the structure in literature [3].…”

Section: System Architecture and Storage Unitsmentioning

confidence: 99%

“…e simulation result is shown as the solid line in the above figure by setting the voltage at the MC terminal to 0-3.5 V and setting the voltage at the MT terminal to zero. e other process is reversed, setting the voltage at the MT terminal to 0-3.5 V and setting the bias voltage at the MC terminal to zero [3]. e simulation result is shown as the dashed line in the above figure . When the voltage at the MC side of the control terminal changes from 0 to 3.5 V without adding the bias voltage at the MT side, it can be seen that the voltage of the floating gate also increases, and the other process is similar.…”

Section: Floating Grid State Analysismentioning

confidence: 99%

Study on Low-Cost, Low-Voltage Multiprogrammable Nonvolatile Memory Cells for UHF Tag Chips

Bai

et al. 2022

Scientific Programming

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This paper proposes a low-voltage, low-cost multiple-time-programmable nonvolatile memory (MTP NVM) based on a standard CMOS 0.13 μm process for UHF RFID chip applications. The design of the differential structure cell using the tunneling effect reduces the read and write voltage. The read and write simulation test results show that the read and write operating voltage is 10 V, which is 30% lower than that of conventional EEPROMs. Because the UHF RFID tag chip requires higher voltage reduction, the structured memory cell is well suited for UHF RFID applications.

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A Demodulation Circuit For Analog Front End Of Passive Tag Chip

et al. 2021

J. Phys.: Conf. Ser.

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The demodulation circuit designed in this paper is suitable for the analog front end of passive UHF RFID tag chip, which can handle ASK signals with large changes in amplitude, modulation depth and signal frequency. Its performance meets the requirements of standards ISO/IEC 18000-6C and GB/T 29768-2013. Envelope detection circuit and limiter circuit are simple in structure and do not consume power. The comparison reference voltage is taken according to the average value of the envelope high and low levels, and is less affected by the dynamic changes of the input signal. Changing the width-to-length ratio of the MOSFETs in the feedback path of the comparator can adjust the hysteresis, with strong noise suppression and controllable sensitivity. The demodulator is implemented with TSMC 0.18 μm standard CMOS process. The simulation results show that the ASK signal modulation depth that the demodulator can handle is as low as 30%, and the maximum pulse width demodulation error is only 0.43%.

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A −20 dBm Passive UHF RFID Tag IC With MTP NVM in 0.13-μm Standard CMOS Process

Cited by 7 publications

References 29 publications

Adaptive Noise-Resistant Low-Power ASK Demodulator Design in UHF RFID Chips

Adaptive Noise-Resistant Low-Power ASK Demodulator Design in UHF RFID Chips

Study on Low-Cost, Low-Voltage Multiprogrammable Nonvolatile Memory Cells for UHF Tag Chips

A Demodulation Circuit For Analog Front End Of Passive Tag Chip

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