scholarly journals TRANSPARENT ENERGY HARVESTING ANTENNA FOR VEHICLE WINDSHIELD APPLICATION

SINERGI ◽  
2019 ◽  
Vol 23 (1) ◽  
pp. 27
Author(s):  
Yusnita Rahayu ◽  
Muhammad Ikmal ◽  
Ahmad Mudhirullaq Syam ◽  
Daniel Junianto
Keyword(s):  
Energy Storage ◽  
Energy Harvesting ◽  
Glass Substrate ◽  
Return Loss ◽  
Directional Pattern ◽  
Simulation Software ◽  
Rf Energy Harvesting ◽  
Rectifier Circuit ◽  
Rf Signals ◽  
Rf Energy

This paper presents a transparent energy harvesting antenna for a vehicle windshield application. The antenna is designed using AgHT-4 with a thickness of 0.175 mm and the glass substrate (Ɛr= 4.82) with a thickness of 2 mm. The antenna has dimensions of 46.238 x 35.4 mm. The antenna is designed and simulated in CST simulation software. It shows that the return loss of -32.76 dB obtained at 2.2412 GHz with broad directional pattern and a gain of 5 dBi. The rectifier circuit of RF energy harvesting will charge the energy storage by utilizing the ambient RF signals from the environment, convert it to the DC signal, and using the DC signal to charge the energy storage. This antenna is intended to be mounted on a car windshield to provide Wi-Fi signals to passengers

A New Wide Dynamic Range Rectifier Circuit for Ambient RF Energy Harvesting

2021 ◽  
Author(s):  
Cheng Jiang ◽  
Xiaokang Wu ◽  
Bin Wei ◽  
Ziyue Li ◽  
Qian Yang ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Dynamic Range ◽  
Wide Dynamic Range ◽  
Rf Energy Harvesting ◽  
Rectifier Circuit ◽  
Rf Energy

Investigation of Compact Tree-Shaped Coplanar Waveguide (CPW) Antenna for RF Energy Harvesting

2014 ◽  
Vol 699 ◽  
pp. 903-908
Author(s):  
Zahriladha Zakaria ◽  
Nur Aishah Zainuddin ◽  
Mohd Nor Husain ◽  
Mohamad Zoinol Abidin Abd Aziz ◽  
Mohamad Ariffin Mutalib
Keyword(s):  
Energy Harvesting ◽  
Return Loss ◽  
Printed Circuit Board ◽  
Coplanar Waveguide ◽  
Green Technology ◽  
Circuit Board ◽  
Early Investigation ◽  
Etching Technique ◽  
Rf Energy Harvesting ◽  
Rf Energy

This paper studies a compact wideband tree-shaped coplanar antenna which has the potential to be used for RF energy harvesting. The antenna is fabricated on a double-sided FR-4 printed circuit board using an etching technique. The effect of semi-circle patch embedded to a triangular patch has been studied. The comparison between simulation and measurement results for the return loss and radiation patterns are observed and are in good agreement. The measured return loss is in line with the simulation response where both manage to achieve lower than-10dB. A bandwidth of 3.64 GHz and 3.94 GHz were obtained in simulation and measurement process respectively. This study is an early investigation in designing the antenna for RF energy harvesting system to support green technology and sustainable development particularly for Wireless Sensor Network (WSN).

scholarly journals RF energy harvesting prototype operating on multiple frequency bands with advanced power management

2020 ◽  
Vol 17 (1) ◽  
pp. 70
Author(s):  
Manee Sangaran Diagarajan ◽  
Agileswari Ramasamy ◽  
Navaamsini Boopalan ◽  
Norashidah Bt. Md Din
Keyword(s):  
Energy Harvesting ◽  
Power Management ◽  
Rf Energy Harvesting ◽  
Frequency Bands ◽  
Dc Power ◽  
Start Up ◽  
Rf Signals ◽  
Nimh Battery ◽  
Rf Energy ◽  
Efficient Power

<span>Radio Frequency (RF) harvesting seems to be catching up as an alternate energy source whereby RF energy is scavenged from ambient sources and converted into renewable energy in terms of DC power. This converted DC power is then utilized to power up devices that require a low start up power in which eliminates the need for battery replacement. In this paper, a novel RF energy harvesting prototype is presented which consists of two microstrip patch antennas operating on GSM (900MHz) and WIFI (2.4GHz) &amp; WiMAX (2.3GHz) frequency bands with a bandwidth of 220MHz and 10.11MHz respectively to harvest RF signals from ambience. Two matching networks are presented as well to ensure efficient power transfer to load. Rectifiers are designed to transform the RF signals to DC power. The converted DC signals are then combined and fed to a power management circuit which charges a 4.2V NiMh battery and drives a load at a regulated output of 3V.</span>

scholarly journals Characterization of Energy Availability in RF Energy Harvesting Networks

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Daniela Oliveira ◽  
Rodolfo Oliveira
Keyword(s):  
Energy Harvesting ◽  
Power Distribution ◽  
Energy Harvester ◽  
Base Stations ◽  
Rf Power ◽  
Rf Energy Harvesting ◽  
Gamma Distributions ◽  
Rf Signals ◽  
Spatially Distributed ◽  
Rf Energy

The multiple nodes forming a Radio Frequency (RF) Energy Harvesting Network (RF-EHN) have the capability of converting received electromagnetic RF signals in energy that can be used to power a network device (the energy harvester). Traditionally the RF signals are provided by high power transmitters (e.g., base stations) operating in the neighborhood of the harvesters. Admitting that the transmitters are spatially distributed according to a spatial Poisson process, we start by characterizing the distribution of the RF power received by an energy harvester node. Considering Gamma shadowing and Rayleigh fading, we show that the received RF power can be approximated by the sum of multiple Gamma distributions with different scale and shape parameters. Using the distribution of the received RF power, we derive the probability of a node having enough energy to transmit a packet after a given amount of charging time. The RF power distribution and the probability of a harvester having enough energy to transmit a packet are validated through simulation. The numerical results obtained with the proposed analysis are close to the ones obtained through simulation, which confirms the accuracy of the proposed analysis.

scholarly journals A Compact Dual-Port Multi-Band Rectifier Circuit for RF Energy Harvesting

2021 ◽  
Vol 680 (1) ◽  
pp. 167-184
Author(s):  
Surajo Muhammad ◽  
Jun Jiat Tiang ◽  
Sew Kin Wong ◽  
Amjad Iqbal ◽  
Amor Smida ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Rf Energy Harvesting ◽  
Rectifier Circuit ◽  
Rf Energy ◽  
Multi Band

Bumbung Gelombang Lingkaran Susun Untuk Aplikasi RF Energy Harvesting pada GSM 1800 MHz

2021 ◽  
Vol 6 (2) ◽  
pp. 135
Author(s):  
Muhammad Panji Praja
Keyword(s):  
Energy Harvesting ◽  
Return Loss ◽  
Electrical Power ◽  
Circular Waveguide ◽  
Parameter Study ◽  
Waveguide Array ◽  
Rf Energy Harvesting ◽  
Optimum Result ◽  
Rf Energy ◽  
Power Needs

Mobile device for mobile communication, especially GSM communication is one of the most important thing in our daily activities. A massive mobilty and connectivity to make sure everyone is connected to each other is necessary. In a same time, electrical power needs will increase in order to support the increasingly rapid exchange of information. In this research shown the result of circular waveguide array mode TM01 measurement for RF energy harvesting application at frequency GSM 1800 MHz – 1900 MHz. Design of circular waveguide array through parameter study developed an optimum result, return loss  at frequency centre 1850 MHz. Realization of this design is measured in unechoic chamber for minimizing a reflected wave from the ambient, so it called an ideal area for waveguide parameter measurement. The measurement results return loss at freuquency 1840 MHz

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