A 950MHz rectifier circuit for sensor networks with 10m-distance

Umeda, Toshiyuki; Yoshida, Hiroshi; Sekine, Satoshi; Fujita, Yasuhiko; Suzuki, Tomoya; Otaka, Shoji

doi:10.1109/isscc.2005.1493966

Cited by 36 publications

(7 citation statements)

References 2 publications

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“…In [8] rectifier is implemented in 0.18u technology using 1.8V devices hence are not suitable for battery charging application. In [10] an external dc bias is used to switch ON MOSFETS, which is not available for a self sustaining battery charging system.…”

Section: Novel Cmos Rectifier Topology For Battery Charging Requimentioning

confidence: 99%

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An Integrated CMOS RF Energy Harvester with Differential Microstrip Antenna and On-Chip Charger

Arrawatia

Diddi

Kochar

et al. 2012

2012 25th International Conference on VLSI Design

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This paper presents an energy harvesting system which extracts energy from radio frequency radiation for battery charging applications. It comprises of a new differential center tapped Microstrip antenna, off-chip matching circuit, on-chip novel CMOS rectifier and control circuitry in 180nm CMOS technology. For on-chip modules, thick oxide devices have been used so as to meet the charging requirements of the target batteries. The designed battery charging module charges either of 250μAh and 10μAh batteries according to the selected battery and available input power. The 250μAh battery is charged at input power of 2dBm and 10μAh battery is charged at input power of -6.5dBm. The fabricated antenna has a gain of 8.3dB and a VSWR less than 2 in the bandwidth from 844 to 970MHz. An efficient Periodic Steady State(PSS)-based power matching technique is also presented which improves the system efficiency. For 0dBm input power at 950 MHz to the antenna the proposed technique leads to 55.2% efficiency of RF to DC converter system. In addition to the integrated design a discrete rectifier using highfrequency Schottky diodes and differential microstrip antenna at the input are fabricated. The discrete system uses the proposed matching technique and exhibits efficiency of 40% for -11dBm received power by the antenna.

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Section: Novel Cmos Rectifier Topology For Battery Charging Requimentioning

confidence: 99%

“…Maximum gain of 11.98dB is reported in [6] but for a bandwidth of only about 20MHz. In the context of integrated rectifiers various CMOS rectifier topologies have been proposed in [8]- [10]. Efficiency of the overall system greatly depends upon the matching between the rectifier and antenna.…”

Section: Introductionmentioning

confidence: 99%

An Integrated CMOS RF Energy Harvester with Differential Microstrip Antenna and On-Chip Charger

Arrawatia

Diddi

Kochar

et al. 2012

2012 25th International Conference on VLSI Design

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“…However, the particularity of processes for Schottky diodes and the inconsistency in quality between different processes often make the integration of Schottky rectifier incompatible with standard CMOS circuits and then handicap its application. So, various junction diodes, such as diode-connected MOS FETs [2], [4], [7], instead of the Schottky diodes are used in rectifier.…”

Section: A Full-wave Ac/dc Rectifiermentioning

confidence: 99%

“…In order to achieve a low power operation, many technologies, such as SOI [3], SOS [4], organic TFT technology [5], and CMOS [2], [6], [7], have been selected for RFID transponder fabrication. Except for the traditional architecture [6], an architecture used in a a long-range telemetry device, incorporating an on-chip ADC, and employing active telemetry for data transmission is proposed for transponder implementation [8].…”

Section: Introductionmentioning

confidence: 99%

“…Analysis, modeling and design strategy of UHF rectifier [9], [10] and Voltage Multiplier [11] and design criteria for UHF passive RFID transponder [11] are reported in recent years. And some innovations about rectifier, such as voltage threshold cancellation in rectifier [2], rectifier with dynamic gate-drain biasing [7], also have been proposed to improve communication range. This paper describes a new architecture of transponder integrated a new demodulator and dynamic clock extraction and modulator circuits with no static current.…”

Section: Introductionmentioning

confidence: 99%

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A low-power RF front-end of passive UHF RFID transponders

Ma¹,

Wu²,

Zhang

et al. 2008

APCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems

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This paper presents in details the architecture and most of RF front-end building blocks of a fully integrated passive radio frequency identification (RFID) transponder operating at UHF 902MHz to 928MHz. A novel architecture for the transponder IC and a new low power on-off keying (OOK) demodulator are proposed in this paper. For realizing the system, a low power CMOS full-wave rectifier achieving a power conversion efficiency of 31.9% has been integrated in this transponder. Simulation results show that the global input power of front-end circuits is only about 21µw in order to drive a load of 1.8µA at the rectifier output and the power consumption of the proposed demodulator is less than 0.4µw. The transponder is fabricated in a 0.18µm mixed-mode CMOS technology and has the area of 0.70 mm2.

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A design of analog VDD generator for passive UHF RFID Tag in 90 nm CMOS

Hassouni

Qjidaa

2014

Int. J. Microw. Wireless Technol.

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This paper introduces a VDD generator for the ultrahigh frequency (UHF) passive Radio-frequency identification (RFID) tag, consisting of an RF-limiter, an NMOS rectifier, a DC-limiter, and a regulator. The proposed NMOS rectifier utilizes diode-connected native NMOS transistors with ultralow-threshold voltage instead of Schottky diodes. The theoretical equations for predicting the performance of the VDD generator are provided and verified by both simulation results in 90 nm CMOS process. The proposed VDD generator generates a 1.19-V stable output voltage with low-power dissipation and a 26.96% larger power conversion efficiency under conditions of 50 Ω antenna, 900 MHz, −23 dBm input power and 1 M DC output load. The chip area of the proposed VDD generator is only 105 × 85 μm. The simulation results indicated that the presented novel VDD generator is capable to provide efficient, stable, and input-independent power supply for Passive UHF RFID tag

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A 950MHz rectifier circuit for sensor networks with 10m-distance

Cited by 36 publications

References 2 publications

An Integrated CMOS RF Energy Harvester with Differential Microstrip Antenna and On-Chip Charger

An Integrated CMOS RF Energy Harvester with Differential Microstrip Antenna and On-Chip Charger

A low-power RF front-end of passive UHF RFID transponders

A design of analog VDD generator for passive UHF RFID Tag in 90 nm CMOS

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