Multi-Stage Schottky Diode Power Harvester for UWB application

Moulay, Ahmed; Djerafi, Tarek

doi:10.1109/wpt.2018.8639080

Cited by 6 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Unlike other UWB or broadband RF power detectors [ 7 , 8 , 10 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ], the UWB Fe-Co-B planar antenna is an integral part of the proposed sensor. Such integration reduces the form factor, eliminates any need for post integration using external components, and enables one to batch fabricate the device at a low cost.…”

Section: Discussionmentioning

confidence: 99%

“…To overcome these limitations, a large resistive matching network was used in [ 18 ] to realize a CMOS-based RF power detector with a high bandwidth up to 110 GHz. A distributed transmission line like a diode-based network has been implemented in [ 19 ] to realize a UWB energy harvester in the 1–11 GHz range. In the design, the authors used a cascade of five commercially available Schottky diodes to distribute the incident RF power among the diode network and a common load resistor.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A MEMS Ultra-Wideband (UWB) Power Sensor with a Fe-Co-B Core Planar Inductor and a Vibrating Diaphragm Capacitor

Vejella

Chowdhury

2021

Sensors

View full text Add to dashboard Cite

The design of a microelectromechanical systems (MEMS) ultra-wideband (UWB) RMS power sensor is presented. The sensor incorporates a microfabricated Fe-Co-B core planar inductor and a microfabricated vibrating diaphragm variable capacitor on adhesively bonded glass wafers in a footprint area of 970 × 970 µm2 to operate in the 3.1–10.6 GHz UWB frequency range. When exposed to a far-field UWB electromagnetic radiation, the planar inductor acts as a loop antenna to generate a frequency-independent voltage across the MEMS capacitor. The voltage generates a coulombic attraction force between the diaphragm and backplate that deforms the diaphragm to change the capacitance. The frequency-independent capacitance change is sensed using a transimpedance amplifier to generate an output voltage. The sensor exhibits a linear capacitance change induced voltage relation and a calculated sensitivity of 4.5 aF/0.8 µA/m. The sensor can be used as a standalone UWB power sensor or as a 2D array for microwave-based biomedical diagnostic imaging applications or for non-contact material characterization. The device can easily be tailored for power sensing in other application areas such as, 5G, WiFi, and Internet-of-Things (IoT). The foreseen fabrication technique can rely on standard readily available microfabrication techniques.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A MEMS Ultra-Wideband (UWB) Power Sensor with a Fe-Co-B Core Planar Inductor and a Vibrating Diaphragm Capacitor

Vejella

Chowdhury

2021

Sensors

View full text Add to dashboard Cite

show abstract

“…But the efficiency is still lower. As for wideband rectifier [14][15][16][17][18][19], it can harvest more energy in a wide range of frequency band, but it is always challenging. In [16], a novel ultrawideband rectenna is presented by using hybrid resistance compression technology to improve the impedance matching performance over a wide frequency range, which has high rectifying efficiency from 450 MHz to 900 MHz.…”

Section: Introductionmentioning

confidence: 99%

A Novel High-Sensitivity Broadband Rectifier for Ambient RF Energy Harvesting

Wang¹,

Jin²,

Huang³

et al. 2022

RADIOENGINEERING

View full text Add to dashboard Cite

In this paper, a novel high-sensitivity broadband rectifier is proposed aiming at ambient radio frequency (RF) energy harvesting. Traditionally, voltage doubling rectifying circuit is used to design high-sensitivity rectifier. But when the input power is lower, the rectifying efficiency is significantly reduced. Therefore, an improved parallel half-wave rectifying circuit is proposed in this article which can convert RF energy in the whole period. And the proposed rectifying circuit can work better in lower power environment and has a higher efficiency level. Besides, the impedance match is also important component of rectifier. Due to the nonlinearity and complexity of rectifying circuit, achieving wideband matching network is a challenge. Thus, a design approach of broadband impedance circuit is given in this study. Combining with the proposed highsensitivity rectifying circuit, a high-sensitivity wideband rectifier can be generated, when the input power is -15 dBm, -20 dBm, -25 dBm, the efficiency is 43%, 32%, 20%, respectively. Finally, a second-order wideband rectifier with high sensitivity is realized, and the range of bandwidth can cover four main frequency bands of GSM 900 MHz, GSM 1800 MHz, UMTS 2100 MHz, WLAN 2400 MHz. To verify the validity, the rectifier is fabricated and measured, and the measurement has a good agreement with simulation results.

show abstract

“…Usually, a UWB signal has a very low power spectral density (≤ −41 dBm/Hz) [12][13][14]. Only a few power rectifiers with broad band performance have been reported [15,16]. These designs have been optimized for the rectification of a single-tone sinusoidal signal in a relatively broad band frequency.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Ultra-Wide Band Multistage Rectifier for Pulsed Signal Power Transmission

Moulay¹,

Djerafi²

2021

PIER C

Self Cite

View full text Add to dashboard Cite

This paper presents a multi-sections broad-band radio-frequency (RF) to direct-current (dc) power rectifier for pulsed signal transfer. The power transfer using a pulse allows to use a signal with low power spectral density. The optimal distributed configuration with critical parameters is studied to enhance the efficiency over broadband frequency and wide power range. A five-stage distributed RF-dc converter arrangement with micro-strip transmission line ensures the power harvesting from 100 MHz to 11 GHz. The designed and fabricated circuit is characterized at multi-frequencies of ultra-wide band (UWB). The distributed harvester significantly improves the detected voltage over a wide bandwidth compared to conventional RF detectors. The achieved efficiency with optimized parameters is 48% with five-stage harvester. A maximum dc output of 956 mV is reached at 8 dBm of input power of sinusoidal single tone signal at 1 GHz of frequency. The designed prototype is associated with a square wave signal to show the circuit potential in terms of power transfer. The output voltage can be controlled with input signal level, frequency, as well as the pulse width. For the power transfer circuit, 996 mV of maximum dc output voltage is reached for 1 V of input amplitude at 1 GHz with duty cycle of 50%. The efficiency increases significantly with duty cycle ratio of the input signal. The power harvester associated with a UWB antenna confirms the benefit of using a square wave signal in the case of power harvesting or transfer.

show abstract

Multi-Stage Schottky Diode Power Harvester for UWB application

Cited by 6 publications

References 5 publications

A MEMS Ultra-Wideband (UWB) Power Sensor with a Fe-Co-B Core Planar Inductor and a Vibrating Diaphragm Capacitor

A MEMS Ultra-Wideband (UWB) Power Sensor with a Fe-Co-B Core Planar Inductor and a Vibrating Diaphragm Capacitor

A Novel High-Sensitivity Broadband Rectifier for Ambient RF Energy Harvesting

Enhanced Ultra-Wide Band Multistage Rectifier for Pulsed Signal Power Transmission

Contact Info

Product

Resources

About