A remote-powered RFID tag with 10Mb/s UWB uplink and &amp;#x2212;18.5dBm sensitivity UHF downlink in 0.18&amp;#x00B5;m CMOS

Nejad, Majid Baghaei; Mendoza, David S.; Zou, Zhuo; Radiom, Soheil; Gielen, Georges; Zheng, Lirong; Tenhunen, Hannu

doi:10.1109/isscc.2009.4977376

Cited by 63 publications

(43 citation statements)

References 6 publications

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“…Fig. 3 plots the change in power consumption of low-power LSI chips reported from 2007 to 2014 at ISSCC and VLSI Circuits [3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37], which are the most popular international conferences in the semiconductor industry. It is found that there are three domains: milliwatt, microwatt, and nanowatt.…”

Section: Trends In Circuit Technology and Energy Harvestingmentioning

confidence: 99%

Ultra-low-power circuit techniques for mm-size wireless sensor nodes with energy harvesting

Morimura¹,

Oshima²,

Matsunaga³

et al. 2014

IEICE Electron. Express

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This paper describes circuit techniques for energy-harvesting technology in millimeter-size ultra-low-power batteryless wireless sensor nodes as a front end for BigData, IoT, M2M, and ambient intelligence. Power generated by energy harvester becomes as small as the nanowatt level when the size of a sensor node becomes millimeter-size. First, technical trends in low-power circuits and the portfolio of energy harvesting and circuit technology are discussed from the viewpoints of technical and application issues. Then, circuit techniques for nanowatt level wireless sensor nodes -a zero-power vibration sensing circuit, power management with MEMS switch, and an intermitted RF transmitter -are explained.

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Section: Trends In Circuit Technology and Energy Harvestingmentioning

confidence: 99%

Ultra-low-power circuit techniques for mm-size wireless sensor nodes with energy harvesting

Morimura¹,

Oshima²,

Matsunaga³

et al. 2014

IEICE Electron. Express

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“…4 shows the system architecture of the display tag. The power management unit (PMU) implements a duty-cycled structure based on the design in [18] to improve the system sensitivity when the display is refreshed. Two voltage sensors (Vsen) switch on and off two low-drop-out (LDO) regulators according to the rectified voltage over a storage capacitor.…”

Section: For Display Cells With 10mmmentioning

confidence: 99%

“…In order to power on the core circuit in parallel with display refreshing, a duty-cycled PMU based on the design in [18] is implemented. A Vsen for the 1.8 V LDO activates the display driving only when the rectified voltage in the storage capacitor surpasses a certain value (2.8 V in this system) and stops it when the voltage drops below another value (1.9 V).…”

Section: B Duty-cycled Power Management Unitmentioning

confidence: 99%

A passive UHF-RFID tag with inkjet-printed electrochromic paper display

Shen

Xie

Mao

et al. 2013

2013 IEEE International Conference on RFID (RFID)

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“…However, the field from the reader can be modified by the existence of a ground plane and external noises. Thus, it producesa dark area where the intensity of the field is too small to excite the transponders [4][5].…”

Section: Introductionmentioning

confidence: 99%

Measurements of Dark Area in Sensing RFID Transponders

Kang

Kim²

2012

Journal of Sensor Science and Technology

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Radiofrequency(RF) signal is a key medium to the most of the present wireless communication devices including RF identification devices(RFID) and smart sensors. However, the most critical barrier to overcome in RFID application is in the failure rate in detection. The most notable improvement in the detection was from the introduction of EPC Class1 Gen2 protocol, but the fundamental problems in the physical properties of the RF signal drew less attention. In this work, we focused on the physical properties of the RF signal in order to understand the failure rate by noting the existence of the ground planes and noise sources in the real environment. By using the mathematical computation software, Maple, we simulated the distribution of the electromagnetic field from a dipole antenna when ground planes exist. Calculations showed that the dark area can be formed by interference. We also constructed a test system to measure the failure rate in the detection of a RFID transponder. The test system was composed of a fixed RFID reader and an EPC Class1 Gen2 transponder which was attached to a scanner to sweep in the x-y plane. Labview software was used to control the x-y scanner and to acquire data. Tests in the laboratory environment showed that the dark area can be as much as 43 %. One who wants to use RFID and smart sensors should carefully consider the extent of the dark area.

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A remote-powered RFID tag with 10Mb/s UWB uplink and −18.5dBm sensitivity UHF downlink in 0.18µm CMOS

Cited by 63 publications

References 6 publications

Ultra-low-power circuit techniques for mm-size wireless sensor nodes with energy harvesting

Ultra-low-power circuit techniques for mm-size wireless sensor nodes with energy harvesting

A passive UHF-RFID tag with inkjet-printed electrochromic paper display

Measurements of Dark Area in Sensing RFID Transponders

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