Optimization of Rectifying Circuit for RF Energy Scavenging

2021 ◽  
Vol 2 (1) ◽  
pp. 60-67
Author(s):  
Intan Shafinaz Abd. Razak ◽  
Zunainah Hamid
Keyword(s):  
Schottky Diodes ◽  
Access Point ◽  
Power Input ◽  
Input Power ◽  
Design System ◽  
Energy Scavenging ◽  
Very High Frequency ◽  
Zero Bias ◽  
Radio Frequency Energy ◽  
Approach Zero

This paper studies a rectifier design for radio frequency energy scavenging at 2.45 Ghz ISM band. The designs of a voltage doubler rectifier that enable RF to DC conversion consists of two units of Schottky diode. This paper also covers the analysis of six zero bias Schottky diodes. The Schottky rectifier is widely used due to their switching speeds that can approach zero time and give very small forward voltage drops. It does allow the circuit to operates at very high frequency and very low power input signals. The rectifying circuit is designed, simulated and measured in this study by using Agilent Advanced Design System (ADS) at 2.45 GHz. The conversion efficiency of proposed rectifier with HSCH-9161 diode gives 31.16%. The rectifier reaches the highest efficiency at 20 dBm input power, which reliable to commercial Wi-Fi access point that operates at 10 to 25 dBm. The higher output voltage is 10.32 V at 20 dBm.

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 Rectifiers’ Design and Optimization for a Dual-Channel RF Energy Harvester

2020 ◽  
Vol 10 (2) ◽  
pp. 11
Author(s):  
Davide Colaiuda ◽  
Iolanda Ulisse ◽  
Giuseppe Ferri
Keyword(s):  
Low Cost ◽  
Schottky Diodes ◽  
Input Power ◽  
Design And Optimization ◽  
Radio Frequency Energy ◽  
Dual Channel ◽  
A Value ◽  
Lumped Elements ◽  
Commercial Device ◽  
Load Pull

This paper presents the design and implementation of two front-ends for RF (Radio Frequency) energy harvesting, comparing them with the commercial one—P2110 by Powercast Co. (Pittsburgh, PA, USA) Both devices are implemented on a discrete element board with microstrip lines combined with lumped elements and are optimized for two different input power levels (−10 dBm and 10 dBm, respectively), at the GSM900 frequencies. The load has been fixed at 5kΩ, after a load-pull analysis on systems. The rectifiers stages implement two different Schottky diodes in two different topologies: a single diode and a 2-stage Dickson’s charge pump. The second one is compared with the P2110 by generating RF fields at 915 MHz with the Powercast Powerspot. The main aim of this work is to design simple and efficient low-cost devices, which can be used as a power supply for low-power autonomous sensors, with better performances than the current solutions of state-of-the-art equipment, providing an acceptable voltage level on the load. Measurements have been conducted for input power range −20 dBm up to 10 dBm; the best power conversion efficiency (PCE) is obtained with the second design, which reaches a value of 70% at 915 MHz. In particular, the proposed device exhibited better performance compared to the P2110 commercial device, allowing a maximum distance of operation of up to 22 meters from the dedicated RF power source, making it suitable even for IoT (Internet of Things) applications.

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.

scholarly journals RF Energy Harvesting using Wireless Sensor Network for Low Power Applications

2019 ◽  
Vol 9 (2) ◽  
pp. 3469-3471
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Power Level ◽  
Schottky Diodes ◽  
Input Power ◽  
Base Station ◽  
Wireless Sensor ◽  
Maximum Efficiency ◽  
Design System ◽  
Rf Energy

The evolution of telecommunications systems emphasizes the importance of RF energy in the surroundings. This energy can be utilized for less power device namely wireless sensor network. The performance of small DC/RF converter is calculated in this paper in sequence to enslave the WSN performance for energy recovered. Specially to attain the performance in GSM band the efficient rectifier is achieved. Based on the selection of rectifying diode the design methodology works and causes the losses in rectifying antenna. By employing the slope method the advantageous performance is obtained in Advanced Design System (ADS) software. Implementing Schottky diodes in rectifier and voltage doubler HSMS 2850 is used. RF/DC conversion the maximum efficiency is 38% is achieved with 10dBm input power level. A uniform distribution of sensor node with network loads is utilized to control the WSN performance of Base station location as well as distance. For such reason Low Energy Adaptive Clustering Hierarchy (LEACH) protocol is utilized.

Experimental Investigation of Ultrasonic Effect on an Acetone Oscillating Heat Pipe

2013 ◽  
Author(s):  
Nannan Zhao ◽  
Benwei Fu ◽  
Dianli Zhao ◽  
Hongbin Ma
Keyword(s):  
Heat Transfer ◽  
Heat Pipe ◽  
Heat Transfer Performance ◽  
Power Input ◽  
Input Power ◽  
Transfer Performance ◽  
Oscillating Heat Pipe ◽  
Ultrasonic Effect ◽  
Ultrasonic Sound ◽  
Oscillating Motion

The ultrasonic effect on the oscillating motion and heat transfer in an oscillating heat pipe (OHP) containing acetone was investigated experimentally. The ultrasonic sound was applied to the evaporating section of the OHP by using electrically-controlled piezoelectric ceramics. The ultrasonic sound is used to generate and maintain the oscillating motion, and, thereby, heat transfer is enhanced. The heat pipe was tested with or without the ultrasonic sound. In addition, the effects of heat load, filling ratio, orientation, operating temperature, and input power from 15 W to 200 W were investigated. The experimental results demonstrate that ultrasonic sound can affect the oscillating motions and enhance the heat transfer performance of the acetone OHP. In particular, the application of the ultrasonic sound on an acetone OHP can significantly reduce the thermal resistance of the acetone OHP and enhance the heat transfer performance in a low power input region. The investigation will provide an insight into the oscillating mechanism of the acetone OHP influenced by ultrasonic sound and provide a new way to enhance the heat transfer performance of the OHP.

Millimeter wave broadband high sensitivity detectors with zero-bias Schottky diodes

2015 ◽  
Vol 36 (6) ◽  
pp. 065002 ◽  
Author(s):  
Changfei Yao ◽  
Ming Zhou ◽  
Yunsheng Luo ◽  
Conghai Xu
Keyword(s):  
Millimeter Wave ◽  
Schottky Diodes ◽  
High Sensitivity ◽  
Zero Bias

scholarly journals Design of a Four-Branch Optical Power Splitter Based on Gallium-Nitride Using Rectangular Waveguide Coupling for Telecommunication Links

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Retno W. Purnamaningsih ◽  
Nji R. Poespawati ◽  
Elhadj Dogheche
Keyword(s):  
Gallium Nitride ◽  
Power Distribution ◽  
Optical Power ◽  
Power Input ◽  
Input Power ◽  
Propagation Length ◽  
Power Splitter ◽  
Excess Loss ◽  
Total Input ◽  
Rectangular Waveguides

This paper reports design of a simple four-branch optical power splitter using five parallel rectangular waveguides coupling in a gallium-nitride (GaN) semiconductor/sapphire for telecommunication links. The optimisation was conducted using the 3D FD-BPM method for long wavelength optical communication. The result shows that, at propagation length of 925 μm, the optical power input was successfully split into four uniform output beams, each with 24% of total input power. It is also shown that the relative output power distribution is almost stable through the C-band range. At the operating wavelength of 1.55 μm, the proposed power splitter has an excess loss lower than 0.2 dB. This study demonstrates the opportunity to develop optical interconnections from UV-Visible to near IR wavelengths.

scholarly journals A Wideband Rectenna Using High Gain Fractal Planar Monopole Antenna Array for RF Energy Scavenging

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Mohammad M. Fakharian
Keyword(s):  
Antenna Array ◽  
Conversion Efficiency ◽  
Power Level ◽  
Impedance Matching ◽  
High Gain ◽  
Input Power ◽  
Monopole Antenna ◽  
Energy Scavenging ◽  
Wireless Power ◽  
Circuit Performance

This paper introduces a wideband rectenna that can scavenge ambient wireless power to a range of frequency band from 0.91 GHz to 2.55 GHz efficiently. The proposed rectenna is based on a wideband 2 × 2 fractal monopole antenna array with omnidirectional radiation patterns and high gains of 5 to 8.3 dBi at the desired bands. An improved two-branch impedance matching technique is presented which is designed to enhance the rectifier circuit performance with a relatively low input power ranging from −25 dBm to 10 dBm. Also, a full-wave wideband rectifier that can suitably improve the RF-to-DC power conversion efficiency is designed for the rectenna. A peak efficiency of 76%, 71%, 61%, and 62% is obtained at 950, 1850, 2100, and 2450 MHz, respectively. Measurement results show that a conversion efficiency of 68% has been achieved over an optimal 4.7 kΩ resistor when the simultaneous four-band input power level is −10 dBm. Moreover, an output DC voltage of around 243 mV with voltage varying within 160–250 mV can be achieved by gathering the low ambient wireless power inside laboratory. This study proves that the proposed rectenna can be applied to a range of many low-power electronic applications.

scholarly journals High-efficiency D-TV energy harvesting system for low-input power

2016 ◽  
Vol 3 (1) ◽  
pp. 34-42 ◽  
Author(s):  
Tiago Moura ◽  
Nuno Borges de Carvalho ◽  
Pedro Pinho
Keyword(s):  
Energy Harvesting ◽  
High Efficiency ◽  
Field Measurements ◽  
Sine Wave ◽  
Input Power ◽  
Digital Television ◽  
Radio Frequency Energy ◽  
Television Signal ◽  
Voltage Doubler ◽  
Energy Harvesting System

In this work, a high-efficiency radio-frequency energy-harvesting system that takes use of the Portuguese Digital Television signal (750–758 MHz) to obtain DC power is proposed. To be useful, it is optimized to operate at low-power conditions. For the rectifier, three different solutions are presented: a single-series diode, a single-shunt diode, and a voltage-doubler configuration. The efficiency is similar for the three rectifiers – about 54% with a sine-wave excitation and −10.5 dBm of input power. Field measurements with the voltage-doubler have shown 63% efficiency for the same input power.

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.  

Sign in / Sign up

Export Citation Format

Share Document