scholarly journals Design of Power Over Wi-Fi Rectifier Circuit for IoT Based Sensor Application through Simulation

2020 ◽  
Vol 7 (2) ◽  
pp. 94-105
Author(s):  
Aiman Saifullah Aini Azman ◽  
Nor Azuana Ramli
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Radio Frequency ◽  
Schottky Diodes ◽  
Stable Condition ◽  
Clean Energy ◽  
Input Power ◽  
Sensor Application ◽  
Rectifier Circuit ◽  
Radio Frequency Energy

Energy harvesting has been a phenomena throughout the year as it produces renewable clean energy which not only benefit to the user but also to the environment. Radio frequency energy is among the possible choice that can be harvested for low power usage application. By doing so, low power application such as IoT based sensors can eliminate usage of input power from battery which has limited supply over time or restrained from limited cable length. The objectives of this study are to design a power over Wi-Fi rectifier circuit for IoT based sensor application, analyze the effect of different type of diodes to the power over Wi-Fi rectifier circuit, and determine of minimum voltage required to power an IoT sensor. Cockcroft Walton voltage multiplier configuration was chosen as the rectifier circuit to be employed in the simulation by using Multisim software. With two different Schottky diodes, the output were recorded, and analyzed. Both diode has achieved the minimum required voltage of 3.3V and above for IoT sensors at stage 3. Among the diodes, BAT68 has recorded better output with 4.145V compare to diode BAT17 with 4.090V. Output of diode BAT68 also has reach its stable condition fast than diode BAT17. This configuration can be used and applied in prototype for future study. Even though there are many other factors that need to be considered, radio frequency energy harvesting should be explored more as it promotes clean energy and longevity lifespan as the world are moving wireless in many tasks.

A Dual Frequency RF-DC Rectifier Circuit with a Low Input Power for Radio Frequency Energy Harvesting

2019 ◽  
Vol 28 (03) ◽  
pp. 1950048 ◽  
Author(s):  
Mohamed Mokhlès Mnif ◽  
Hassene Mnif ◽  
Mourad Loulou
Keyword(s):  
Energy Harvesting ◽  
Radio Frequency ◽  
Threshold Voltage ◽  
Output Voltage ◽  
Alternative Energy ◽  
Input Power ◽  
Design System ◽  
Low Input ◽  
Rectifier Circuit ◽  
Radio Frequency Energy

The energy-harvesting radio frequency (RF) can be an attractive alternative energy capable of replacing all or some of the board batteries. The RF waves are present in several high frequencies ([Formula: see text] GHz) and at low power (a few [Formula: see text]W). An energy-harvesting circuit designed must provide 1[Formula: see text]V voltage at minimum that is able to operate an actuator or a sensor. The RF-DC rectifier is the main component of an energy-harvesting circuit. This paper presents a new design RF-DC rectifier circuit using the MOSFET transistors, the capacitors and the inductors. Our proposed circuit is a combination of an Inductor–Capacitor–Inductor–Capacitor (LCLC) serie-parallel resonant tank (SPRT) and rectifier cascade using the Dynamic threshold Voltage Cancellation (DVC) and the technique of the Internal threshold Voltage Cancellation (IVC). Our proposed circuit operates in dual frequencies [Formula: see text][Formula: see text]GHz and [Formula: see text][Formula: see text]GHz with a low input power [Formula: see text][Formula: see text][Formula: see text]W ([Formula: see text][Formula: see text]dbm) and [Formula: see text][Formula: see text][Formula: see text]W ([Formula: see text][Formula: see text]dbm), respectively. This circuit gives a Power Conversion Efficiency (PCE) of 56.9% and an output voltage [Formula: see text][Formula: see text]V for the frequency 2.543[Formula: see text]GHz and a PCE of 62.6% and an output voltage [Formula: see text][Formula: see text]V for the frequency 4[Formula: see text]GHz. The pre-layout simulations were performed using the Advanced Design System (ADS) and the technology used is CMOS 0.18[Formula: see text][Formula: see text]m from TSMC. The simulations were performed on the proposed circuit composed by three stages.

scholarly journals A Review on the Contemporary Research on Radio Frequency Energy Harvesting

2018 ◽  
Vol 7 (3.15) ◽  
pp. 52
Author(s):  
Manee Sangaran Diagarajan ◽  
Agileswari Ramasamy ◽  
Norashidah Bt. Md Din ◽  
Praveen Naidu Vummadisetty
Keyword(s):  
Energy Harvesting ◽  
Radio Frequency ◽  
Power Management ◽  
Schottky Diodes ◽  
Positive Energy ◽  
Patch Antennas ◽  
Radio Frequency Energy ◽  
Microstrip Patch Antennas ◽  
Microstrip Patch ◽  
Low Power Wireless Networks

Radio Frequency harvesting has recently become one of the alternate approaches to power up low power wireless networks. This evolving technology opens the gate for positive energy renewal for wireless components. This paper presents a comprehensive review which includes all the important components in a RF energy harvesting system which are microstrip patch antennas, rectifier modules and power management modules. Different types of microstrip patch antennas and its designs and outputs are discussed. Rectifier modules with Schottky diodes operating under two different frequency bands are also compared and discussed. In addition, different methods of available power management circuits with different methods are also deliberated in this paper. This review also explores various key design issues and envisions some open research directions.  

A radio-frequency energy harvesting scheme for use in low-power ad hoc distributed networks

2012 ◽  
Vol 59 (9) ◽  
pp. 573-577 ◽  
Author(s):  
Wei Zhao ◽  
Kwangsik Choi ◽  
Scott Bauman ◽  
Zeynep Dilli ◽  
Thomas Salter ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Radio Frequency ◽  
Ad Hoc ◽  
Distributed Networks ◽  
Radio Frequency Energy

An Antipodal Vivaldi Antenna with Elliptical Slots for Low-Cost Rectenna Applications

2021 ◽  
pp. 2150248
Author(s):  
E. T. Pereira ◽  
H. P. Paz ◽  
V. S. Silva ◽  
E. V. V. Cambero ◽  
I. R. S. Casella ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Radio Frequency ◽  
Conversion Efficiency ◽  
Output Voltage ◽  
Low Cost ◽  
Power Input ◽  
Maximum Output ◽  
Radio Frequency Energy ◽  
Vivaldi Antenna

In this paper, a low-cost rectenna based on an antipodal Vivaldi antenna (AVA) with elliptical slots (AVA-ES) is developed and analyzed. The design of AVA-ES, when compared to a reference AVA, presents significant improvements in directivity and gain (58% at 2.45[Formula: see text]GHz for both), evidencing its advantages for using in rectennas. The proposed rectenna prototype presents satisfactory results at 2.45[Formula: see text]GHz, such as conversion efficiency for low-power input levels (27% at [Formula: see text]10[Formula: see text]dBm) and maximum output voltage (550[Formula: see text]mV), that supports its use for radio-frequency energy harvesting (RFEH).

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