−31 dBm sensitivity high efficiency rectifier for energy scavenging

Asli, Astrie Nurasyeila Fifie; Wong, Yan Chiew

doi:10.1016/j.aeue.2018.04.019

Cited by 13 publications

(7 citation statements)

References 11 publications

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“…In ideal case where the system is lossless, maximum voltage is transferred from the source to the rectifier, resulting high sensitivity system. Practically, the impedance of the source and rectifier impedance is not the same and voltage losses are presented in the circuit [25]. If source resistance is higher than the main circuit, most power ends up being reflected at the source.…”

Section: Low-pass Upward Matching Networkmentioning

confidence: 99%

“…Figure 12(a) shows the modelling diagram of DDR and its resistance and reactance with a low-pass upward L-matching network. Since the rectifier mainly composes of transistors, its reactance typically consists of capacitance which carries the negative reactance (C_RECT) [25]. To eliminate this negative reactance, a positive reactance is needed.…”

Section: Low-pass Upward Matching Networkmentioning

confidence: 99%

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3.3V DC output at -16dBm sensitivity and 77% PCE rectifier for RF energy harvesting

Asli¹,

Wong²

2019

IJPEDS

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<span>This paper presents a high voltage conversion at high sensitivity RF energy harvesting system for IoT applications. The harvesting system comprises bulk-to-source (BTMOS) differential-drive based rectifier to produce a high efficiency RF energy harvesting system. Low-pass upward impedance matching network is applied at the rectifier input to increase the sensitivity and output voltage. Dual-oxide-thickness transistors are used in the rectifier circuit to maintain the power efficiency at each stage of the rectifier. The system is designed using 0.18µm Silterra RF in deep n-well process technology and achieves 4.07V output at -16dBm sensitivity without the need of complex auxiliary control circuit and DC-DC charge-pump circuit. The system is targeted for urban environment.</span>

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Section: Low-pass Upward Matching Networkmentioning

confidence: 99%

Section: Low-pass Upward Matching Networkmentioning

confidence: 99%

3.3V DC output at -16dBm sensitivity and 77% PCE rectifier for RF energy harvesting

Asli¹,

Wong²

2019

IJPEDS

Self Cite

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“…Thus, in this work, the RF rectifier has been used to kick start the voltage booster. From [24] and [25], it is known that diferent topologies affect its sensitivity and efficiency especially for a better energy harvesting system. In this paper, the rectifier operated at 2.45GHz with incident RF power at 0dbm.…”

Section: Rf Rectifiermentioning

confidence: 99%

A 30mV input battery-less power management system

Yap¹,

Wong²

2019

Bulletin EEI

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This paper presents a fully-integrated on chip battery-less power management system through energy harvesting circuit developed in a 130nm CMOS process. A 30mV input voltage from a TEG is able to be boosted by the proposed Complementary Metal-Oxide-Semiconductor (CMOS) voltage booster and a dynamic closed loop power management to a regulated 1.2V. Waste body heat is harvested through Thermoelectric energy harvesting to power up low power devices such as Wireless Body Area Network. A significant finding where 1 Degree Celsius thermal difference produces a minimum 30mV is able to be boosted to 1.2V. Discontinuous Conduction Mode (DCM) digital control oscillator is the key component for the gate control of the proposed voltage booster. Radio Frequency (RF) rectifier is utilized to act as a start-up mechanism for voltage booster and power up the low voltage closed loop power management circuit. The digitally control oscillator and comparator are able to operate at low voltage 600mV which are powered up by a RF rectifier, and thus to kick-start the voltage booster.

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“…Power consumption is a main constraint in WSN as the operational lifetime of WSN is considered as a critical issue for deployment of the network [5][6][7][8][9]. Sensor nodes in WSN are powered by batteries which need long operating hours without sacrificing system performance but the power of the batteries is limited and exhausts after some time [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Low power wake-up receiver based on ultrasound communication for wireless sensor network

Wong¹,

Tan²,

Singh³

et al. 2020

Bulletin EEI

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Wireless sensor network (WSN) consists of base stations and sensors nodes to monitor physical and environmental conditions. Power consumption is a challenge in WSN due to activities of nodes. High power consumption is required for the main transceiver in WSN to receive communication requests all the time. Hence, a low power wake-up receiver is needed to minimize the power consumption of WSN. In this work, a low power wake-up receiver using ultrasound data communication is designed. Wake-up receiver is used to detect wake-up signal to activate a device in WSN. Functional block modelling of the wake-up receiver is developed in Silterra CMOS 130nm process technology. The performance of the wake-up receiver has been analyzed and achieving low power consumption which is 22.45μW. A prototype to demonstrate a wireless sensor node with wake-up receiver has been developed incorporating both ultrasonic and RF for internal and external communication respectively. We achieve 99.97% of power saving for 10s operation in the experimental setup for the WSN with and without wake-up receiver. Wake-up receiver used in WSN save power and prolong the lifetime of batteries and thus extending the operational lifetime of WSN.

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−31 dBm sensitivity high efficiency rectifier for energy scavenging

Cited by 13 publications

References 11 publications

3.3V DC output at -16dBm sensitivity and 77% PCE rectifier for RF energy harvesting

3.3V DC output at -16dBm sensitivity and 77% PCE rectifier for RF energy harvesting

A 30mV input battery-less power management system

Low power wake-up receiver based on ultrasound communication for wireless sensor network

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−31 dBm sensitivity high efficiency rectifier for energy scavenging

Cited by 13 publications

References 11 publications

3.3V DC output at -16dBm sensitivity and 77% PCE rectifier for RF energy harvesting

3.3V DC output at -16dBm sensitivity and 77% PCE rectifier for RF energy harvesting

A 30mV input battery-less power management system

Low power wake-up receiver based on ultrasound communication for wireless sensor network

Contact Info

Product

Resources

About

−31 dBm sensitivity high efficiency rectifier for energy scavenging