Fully integrated ultra-low-power passive UHF RFID transponder IC

Chung, Chelho; Kim, Young-Han; Ki, Tae-Hun; Bae, Kyu-Sung; Kim, Jong-Bae

doi:10.1109/rfit.2011.6141789

Cited by 6 publications

(1 citation statement)

References 5 publications

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“…To reduce power consumption, the limiter deviation current should be low when the tag and the reader are spaced apart [3], [5]. In [6], [7], used limiters are based on the voltage division structure, where large changes in the limiter voltage can be observed with variations in temperature and fabrication process, and the current consumption in the range of microampere has caused these structures to be used rarely.…”

Section: Introductionmentioning

confidence: 99%

A 2V, 32.13nA, fully MOSFET Voltage Limiter for Low Power Applications

Rayat¹,

Dastanian²

2022

RADIOENGINEERING

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This paper presents a fully MOSFET DC voltage limiter with low current consumption. In the proposed voltage reference structure to reduce power consumption, transistors are biased in the sub-threshold region. To generate complementary to absolute temperature (CTAT) voltage in the voltage reference circuit, only a PMOS transistor is used, in which its drain, gate, and source terminals are connected together and acts as a diode that reduces the layout area occupation. To further reduce power consumption, a part of the rectifier output voltage is compared with the reference voltage by the sampling circuit. Also, four stage inverters are used as buffers to provide the I-V limiting characteristic closer to the ideal situation. The use of series pass-gate transistors in the first inverter also reduces power consumption as much as possible.The results of post-layout simulation based on 0.18μm CMOS technology depict that the suggested voltage reference circuit has a reference voltage equivalent to 0.579 V with a TC of 37.2 ppm/°C in the temperature range of -50°C to 50°C. LR and PSRR attained 0.008%/V and 45 dB, respectively. The output voltage and current consumption of the limiter circuit are 2 V and 32.13 nA, respectively. The total layout area of the proposed limiter is 3249 μm 2 .

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Section: Introductionmentioning

confidence: 99%

A 2V, 32.13nA, fully MOSFET Voltage Limiter for Low Power Applications

Rayat¹,

Dastanian²

2022

RADIOENGINEERING

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Design and Performances of UHF Tag Integrated Circuits

Laheurte¹,

Ripoll²,

Paret³

et al. 2014

UHF RFID Technologies for Identification and Traceability

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A UHF Passive RFID Tag Front-End Design With a Novel True Random Number Generator

Teng,

Liu,

Zhang

2024

IEEE Access

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Among various wireless communication methods, the ultra-high frequency (UHF) passive Radio Frequency Identification (RFID) electronic tags are widely used due to their ability to transfer information without internal power supply. In this study, a low-power UHF passive RFID tag front-end with a novel structure including a true random number generator is designed and fabricated in standard 180nm CMOS technology. The proposed front-end circuit includes an analog front-end, an RF front-end, and an impedance matching network. The received RF energy is impedance-matched to the analog frontend, generating a power supply voltage for the RF front-end. The RF front-end performs signal demodulation and generates a reference clock. A novel true random number generator (TRNG) is designed in the proposed RF front-end to achieve signal anti-collision functionality. The experimental results indicate that the total power consumption of the RFID tag front-end is 8.67μW, and the TRNG circuit can produce a series of random number with 85.5% of credibility, which effectively improves the randomness of the communication keys.

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Fully integrated ultra-low-power passive UHF RFID transponder IC

Cited by 6 publications

References 5 publications

A 2V, 32.13nA, fully MOSFET Voltage Limiter for Low Power Applications

A 2V, 32.13nA, fully MOSFET Voltage Limiter for Low Power Applications

Design and Performances of UHF Tag Integrated Circuits

A UHF Passive RFID Tag Front-End Design With a Novel True Random Number Generator

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