Relevant bibliographies by topics / RF Energy Harvesting / Dissertations / Theses
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Dissertations / Theses on the topic 'RF Energy Harvesting'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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1

Mattsson, Martin. "Differential Patch Antennafor RF Energy Harvesting." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-200644.

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2

Zhang, Jingwei. "Rectennas for RF wireless energy harvesting." Thesis, University of Liverpool, 2013. http://livrepository.liverpool.ac.uk/18537/.

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There is an increasing interest in energy harvesting. The rectenna, which is a combination of a rectifier and an antenna, is a device to harvest wireless energy in the air. This thesis is concentrated on the analysis, design and measurement of compact rectennas for radio frequency (RF) wireless energy harvesting applications, and the thesis can be divided into three parts. The first part is about broadband planar dipole antennas with an unidirectional radiation pattern which is suitable for wireless energy harvesting applications. With the rapid development of various wireless systems, there i
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3

Sanden, Erlend. "RF Energy Harversting : Design and implementation of an RF energy harvesting system for SoC." Thesis, Mittuniversitetet, Institutionen för elektronikkonstruktion, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-37659.

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This assignment was given by Nordic Semiconductor. In this project a radio frequency energy harvesting system able to harvest ambient power at 900 MHz (GSM) was simulated and designed. A Villard voltage multiplier, boost converter and power management circuit was implemented for the harvesting system. The intention was to implement a system which would give sufficient output power and voltage to supply a load (nRF52810) at all times. The nRF52810 is a power efficient multi protocol SoC made by Nordic Semiconductor. Since the power harvested by the antenna is of AC power, a recti er was needed.
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4

Chaour, Issam, Ahmed Fakhfakh, and Olfa Kanoun. "Enhanced Passive RF-DC Converter Circuit Efficiency for Low RF Energy Harvesting." Universitätsbibliothek Chemnitz, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-224264.

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For radio frequency energy transmission, the conversion efficiency of the receiver is decisive not only for reducing sending power, but also for enabling energy transmission over long and variable distances. In this contribution, we present a passive RF-DC converter for energy harvesting at ultra-low input power at 868 MHz. The novel converter consists of a reactive matching circuit and a combined voltage multiplier and rectifier. The stored energy in the input inductor and capacitance, during the negative wave, is conveyed to the output capacitance during the positive one. Although Dickson an
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5

Khoury, Philip. "A Power-efficient Radio Frequency Energy-harvesting Circuit." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/23627.

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This work aims to demonstrate the design and simulation of a Radio Frequency (RF) energy-harvesting circuit, from receiving antenna to the point of charge collection. The circuit employs a custom-designed antenna based around Koch fractal loops, selected for their small physical size, good multiband behaviour and ease of size scalability, as well as a power-efficient seven-element Greinacher rectification section designed to charge a super-capacitor or rechargeable battery for later use. Multiple frequency bands are tapped for energy and this aspect of the implementation was one on the main f
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6

Efthymakis, Panagiotis. "A RECTENNA FOR 5G ENERGY HARVESTING." VCU Scholars Compass, 2018. https://scholarscompass.vcu.edu/etd/5485.

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This thesis describes the design of a rectenna that is capable of operating in 5G. 5G’s availability will create the opportunity to harvest energy everywhere in the network’s coverage. This thesis investigates a Rectenna device with a new proposed topology in order to eliminate coupling between input and output lines and increase the rectification efficiency. Moreover, it is designed to charge a rechargeable battery of 3V, 1mA, with a 4.8mm diameter. The current design describes using one antenna for energy harvesting; this could be expanded to use an antenna array, which would increase the in
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7

Fowler, Clayton M. "Application of Metamaterials to RF Energy Harvesting and Infrared Photodetection." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/7024.

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Techniques for adapting metamaterials for the improvement of RF energy harvesting and infrared photodetection are demonstrated using experimental and computer simulation methods. Two methods for RF energy harvesting are experimentally demonstrated and supported by computer simulation. In the first method, a metamaterial perfect absorber (MPA) is made into a rectenna capable of harvesting RF energy and delivering power to a load by soldering Schottky diodes onto connected split ring resonator (SRR) structures composing the planar metasurface of the perfect absorber. The meta
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8

Elmorshedy, Lina. "RF energy harvesting in a decode-and-forward wireless relay network." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/57607.

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Wireless communication has experienced tremendous growth over the past three decades. This led to the development of many novel technologies aimed at enhancing the system performance due to the limited availability of radio resources. Cooperative relaying is a promising technology which enhances transmission reliability using simple hardware. However, the extra power consumed for the process of information relaying may be an issue. Recent advances in wireless energy transfer have made it possible for self-sustainable relays that power themselves by capturing ambient energy wirelessly. In this
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9

Pinuela, Manuel. "Ambient RF energy harvesting and efficient DC-load inductive power transfer." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/28090.

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This thesis analyses in detail the technology required for wireless power transfer via radio frequency (RF) ambient energy harvesting and an inductive power transfer system (IPT). Radio frequency harvesting circuits have been demonstrated for more than fifty years, but only a few have been able to harvest energy from freely available ambient (i.e. non-dedicated) RF sources. To explore the potential for ambient RF energy harvesting, a city-wide RF spectral survey was undertaken in London. Using the results from this survey, various harvesters were designed to cover four frequency bands from the
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10

Zhao, Ping [Verfasser], Manfred [Akademischer Betreuer] Glesner, and Thilo [Akademischer Betreuer] Bein. "Energy Harvesting Techniques for Autonomous WSNs/RFID with a Focus on RF Energy Harvesting / Ping Zhao. Betreuer: Manfred Glesner ; Thilo Bein." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2012. http://d-nb.info/1106117824/34.

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11

Song, C. "Broadband rectifying-antennas for ambient RF energy harvesting and wireless power transfer." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3008512/.

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Ambient wireless energy harvesting (AWEH), by means of capturing RF (radio frequency) and microwave energy from ambient and converting it to electric energy, has become an emerging technology and attracted an upsurge of research interests during the past five years. It could become a good addition to complement the existing energy harvesting technologies for such as vibration, solar and wind energies. One of the ultimate objectives of using these energy harvesting technologies is to create self-sustainable, truly standalone wireless sensor platforms and low power devices for smart home, smart
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12

Olgun, Ugur. "Efficient Microwave Energy Harvesting Technology and its Applications." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1348776239.

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13

Adegoke, Elijah. "Radio frequency channel characterization for energy harvesting in factory environments." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/33412.

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This thesis presents ambient energy data obtained from a measurement campaign carried out at an automobile plant. At the automobile plant, ambient light, ambient temperature and ambient radio frequency were measured during the day time over two days. The measurement results showed that ambient light generated the highest DC power. For plant and operation managers at the automobile plant, the measurement data can be used in system design considerations for future energy harvesting wireless sensor nodes at the plant. In addition, wideband measurements obtained from a machine workshop are present
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14

Kokolia, Martin. "Nositelná rektifikační anténa pro RF sklízení energie." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241041.

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The aim of this thesis is to design and rectena that would be able to integrate into a cloth thanks to use of textile substrate. The first part deals with the possibilities of using various communication channels and services for maximizing the useable power. Attention is focused mainly on the use of textile materials for implementing microstrip circuits. It is made valorization of all the typical characteristics and problems using different fabrics as a microwave substrate and the possibilities of realization of conductive structures of microwave patch antenna and microstrip circuits. At the
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15

Reed, Ryan Tyler. "Wireless Information and Power Transfer Methods for IoT Applications." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/104146.

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As Internet of Things (IoT) technology continues to become more commonplace, demand for self-sustainable and low-power networking schemes has increased. Future IoT devices will require a ubiquitous energy source and will need to be capable of low power communication. RF energy can be harvested through ambient or dedicated RF sources to satisfy this energy demand. In addition, these RF signals can be modified to convey information. This thesis surveys a variety of RF energy harvesting methods. A new low complexity energy harvesting system (circuit and antenna) is proposed. Low power communicati
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16

Benassi, Francesca <1992&gt. "RF energy harvesting solutions for electromagnetic harsh environments: from industrial plants to wearable/implantable devices." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2022. http://amsdottorato.unibo.it/10370/1/Francesca_Benassi_tesi.pdf.

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The presented Thesis describes the design of RF-energy harvesting systems with applications on different environments, from the biomedical side to the industrial one, tackling the common thread problem which is the design of complete energy autonomous tags each of them with its dedicated purpose. This Thesis gathers a work of three years in the field of energy harvesting system design, a combination of full-wave electromagnetic designs to optimize not only the antenna performance but also to fulfill the requirements given by each case study such as dimensions, insensitivity from the surroundi
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17

Zhang, Xiaohu. "VHF & UHF energy harvesting radio system physical and MAC layer considerations." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/1435.

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18

Papotto, Giuseppe. "Batteryless RF transceiver for wireless sensor networks." Doctoral thesis, Università di Catania, 2012. http://hdl.handle.net/10761/1082.

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Wireless sensor network (WSN) is a fast growing research area which has attracted considerable attentions both in industrial and academic environments in the last few years. In this work a complete RF transceiver for WSN applications is presented, which includes a RF energy harvesting system, a power management unit and a RF front end. The transceiver is able to operate by scavenging the required DC power from the incoming RF signal, thus avoiding the use of a battery. The use of a quartz oscillator has been avoided as well by exploiting the input signal as a frequency reference. This results
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19

Ramezani, Parisa. "Extending Wireless Powered Communication Networks for Future Internet of Things." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/16850.

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Energy limitation has always been a major concern for long-term operation of wireless networks. With today's exponential growth of wireless technologies and the rapid movement towards the so-called Internet of Things (IoT), the need for a reliable energy supply is more tangible than ever. Recently, energy harvesting has gained considerable attention in research communities as a sustainable solution for prolonging the lifetime of wireless networks. Beside conventional energy harvesting sources such as solar, wind, vibration, etc. harvesting energy from radio frequency (RF) signals has drawn si
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20

LEONI, Alfiero. "CIRCUITI E SISTEMI DI ENERGY HARVESTING ELETTROMAGNETICO RF, TERMICO E BIOMECCANICO PER SENSORI AUTONOMI E DISPOSITIVI BIOMEDICI INDOSSABILI." Doctoral thesis, Università degli Studi dell'Aquila, 2020. http://hdl.handle.net/11697/148332.

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In recent years, the development of electronics and information technology can be considered among the protagonists of social growth and technological progress, now essential for everyday life. The growing number of applications that require global connectivity is going hand in hand with the increasing demand for portable devices, such as in the IoT (Internet of Things) environment, for the distributed monitoring of environmental parameters, the use of wearable devices for human well-being and health or for sports and leisure activities. These devices need a portable and long-lasting source of
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21

Berges, Romain. "Dispositif conformable de récupération d'énergie radiofréquence : vers l'autonomie des objets communicants." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0117/document.

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Parmi les principaux verrous à lever pour la mise en place de l’IoT, l’un des plus difficiles concerne l’autonomie des objets. Il est en effet difficilement concevable, vu le grand nombre de composants déployés, d’intervenir sur chacun pour remplacer, ou recharger, leur batterie. Dans ce contexte ma thèse a pour objectif de proposer des solutions éco-énergétique afin de rendre tout ou partie autonome des objets communicants, type capteur. Une des solutions est de développer des récupérateurs d’énergie radiofréquences fonctionnant aux fréquences dans la bande ISM, 900 MHz et/ou 2,4 GHz. Grâce a
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22

Ababneh, Majdi M. "Design of Micro-Scale Energy Harvesting Systems for Low Power Applications Using Enhanced Power Management System." Scholar Commons, 2018. http://scholarcommons.usf.edu/etd/7117.

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The great innovations of the last century have ushered continuous progress in many areas of technology, especially in the form of miniaturization of electronic circuits. This progress shows a trend towards consistent decreases in power requirements due to miniaturization. According to the ITRS and industry leaders, such as Intel, the challenge of managing and providing power efficiency still persist as scaling down of devices continues. A variety of power sources can be used in order to provide power to low power applications. Few of these sources have favorable characteristics and can be desi
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23

Trovarello, Simone. "Selezione automatica di rettificatori a RF SIMO mediante autopolarizzazione di HEMT." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21835/.

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Nella tesi viene proposto un sistema innovativo di Energy Harvesting per radiofrequenze a 2.45 GHz. Si tratta di un sistema single-input multiple-output ad ampissimo range dinamico di potenza in ingresso che sfrutta il fenomeno di autopolarizzazione di dispositivi non lineari come gli HEMT per selezionare autonomamente, e senza alcun controllo esterno, il ramo di rettificazione più adeguato al fine di ottenere la massima RF-to-DC conversion efficiency possibile. Inoltre il sistema garantisce il massimo isolamento fra i rami che compongono il circuito sfruttando l'ottimizzazione dei Large Signa
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24

Vyas, Rushi J. "An embedded, wireless-energy-harvesting platform (E-WEHP) for powering sensors using existing, ambient, wireless signals present in the air." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52291.

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The objective of this research is to develop an embedded, wireless, energy-harvesting prototype (E-WEHP) that can power on and sustain embedded sensing functions using the power present in ambient wireless signals in urban areas. This research is part of a bigger effort towards greening RF circuits and applications in order to reduce their pollution foot-print. Pollution due to modern electronics is primarily caused by non-biodegradable packaging waste and batteries that form a big part of most electronics. Electronic waste can especially be a nuisance in RFID and wireless sensors that are mas
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25

Soleiman, Andreas. "Battery-free Visible Light Sensing." Thesis, Uppsala universitet, Avdelningen för datorteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-381370.

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In this thesis, we show that it is possible to design a battery-free light sensing system that can sense and communicate hand gestures while operating fully on harvested power from indoor light. We present two main innovations that push our system to tens of microwatts of power to enable battery-free operation. First, we introduce a novel visible light sensing system that can track variations in light intensity by using a solar cell as a sensor. Solar cells are unlike photodiodes optimized for energy yield in the visible light region and hence do not require any power hungry active components
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26

Grante, Florian. "Récupération d'énergie électromagnétique pour alimenter des objets connectés à faible consommation." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAS022.

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Alors que l'IoT explose, ce manuscrit retranscrit les travaux de thèse réalisés dans le but de poser un regard sur la faisabilité de substituer les piles, source d'alimentation des objets connectés par les ondes WiFi dans la bande ISM à 2.4 GHz. Cette substitution représente aujourd'hui un enjeu de développement durable de l'IoT pour l'économie des ressources consommables que sont les piles. Alimenter l'intégralité de l'IoT avec des piles pourrait représenter jusqu'à 60 millions de tonnes (0.02%) d'émission de gaz à effet de serre chaque année.Il convient de définir les contraintes énergétique
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Alessandrini, Marco. "Oscillatori elevatori di tensione per il recupero di micropotenze ambientali da sorgenti a radiofrequenza." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amslaurea.unibo.it/4893/.

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Nel presente elaborato è trattato l'innesco di un sistema di recupero ambientale di energia da sorgenti a radiofrequenza, captate tramite rectenna, nell'ambito di un sistema completamente autonomo dal punto di vista energetico, quindi non dotato di batteria ricaricabile interna. Dopo un'analisi dei problemi da affrontare e delle possibili soluzioni tecniche per gestire le micropotenze restituite dalla rectenna, ci si concentra in modo preferenziale sul ruolo del condensatore posto sulla porta d'ingresso dell'oscillatore di Meissner, che è utilizzato come elevatore di tensione per attivare gli
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Haboubi, Walid. "Développements de circuits Rectennae bi-polarisation, bi-bande pour la récupération et conversion d’énergie électromagnétique à faible niveau." Thesis, Paris Est, 2014. http://www.theses.fr/2014PEST1089/document.

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L'amélioration de l'autonomie énergétique des systèmes communicants constitue aujourd'hui une des préoccupations majeures pour leur déploiement massif dans notre environnement. On souhaite rendre complètement autonome ces dispositifs électroniques (on pense entre autres aux capteurs et réseaux de capteurs) en s'affranchissant des sources d'énergie embarquées qui nécessitent des opérations de remplacement ou de recharge périodiques. Parmi les sources d'énergie disponibles qui peuvent être exploitées, on trouve les ondes électromagnétiques. Le dispositif qui permet de capter cette énergie et la
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Franciscatto, Bruno. "Conception et réalisation d'un nouveau transpondeur DSRC à faible consommation." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT037/document.

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Afin d'augmenter l'efficacité et la sécurité du trafic routier, de nouveaux concepts et technologies ont été développés depuis 1992 en Europe pour les applications RTTT (Road Traffic &amp; Transport Telematics). Ces applications utilisent les équipements DSRC qui supportent les transmissions à courte distance à 5.8GHz. Vues la fiabilité et le succès de cette technologie, l'utilisation de ces équipements est ensuite étendue aux ETC (Electronic Toll Collection) ou Télépéage et aussi dans une multitude d'autres domaines d'application comme la gestion des flottes, le transport public et la gestion
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Al-Hraishawi, Hayder Abed Hussein. "DESIGN AND ANALYSIS OF COGNITIVE MASSIVE MIMO NETWORKS WITH UNDERLAY SPECTRUM SHARING." OpenSIUC, 2017. https://opensiuc.lib.siu.edu/dissertations/1412.

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Recently, massive multiple-input multiple-output (MIMO) systems have gained significant attention as a new network architecture to not only achieving unprecedented spectral and energy efficiencies, but also to alleviating propagation losses and inter-user/inter-cell interference. Therefore, massive MIMO has been identified as one of the key candidate technologies for the 5th generation wireless standard. This dissertation thus focuses on (1) developing a performance analysis framework for cognitive massive MIMO systems by investigating the uplink transmissions of multi-cell multi-user massiv
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31

Lopes, Hugo Filipe Texugo. "Sensores passivos para agricultura." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/18793.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>Esta dissertação surge no âmbito de uma parceria com a Associação de Criadores de Raça Marinhoa, com o objetivo de projetar e desenvolver um sistema de monitorização de gado em ambientes agrícolas. Este sistema tem sensores autónomos, não necessitam de troca de baterias durante anos, estando estes embebidos nos animais de forma a serem robustos e existir uma integração perfeita. Começou-se pelo desenvolvimento do firmware para comunicação dos rádios Texas CC1110, utilizando o protocolo SimpliciTI da Texas. Posteriormente programou-se com
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32

Vandelle, Erika. "Exploration de solutions antennaires et de formation passive de faisceaux pour la récupération et le transfert d’énergie sans fil." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT060.

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La récupération d’énergie électromagnétique provenant de sources ambiantes ou intentionnelles, de fréquences allant de 100 MHz à 10 GHz, est apparue ces dernières années comme une solution prometteuse pour développer l’électronique autoalimentée. Cependant, les faibles densités de puissance, généralement plus faibles que 1 μW.cm-2, engendrent de faibles efficacités de redressement et de faibles sensibilités, et la diversité des signaux ambients (direction d’arrivée et polarisation inconnues et variant dans le temps) ne permet pas d’utiliser des antennes directives.Dans cette thèse, les techniq
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Bui, Do Hanh Ngan. "Antennes souples imprimables pour la récupération de champs électromagnétiques ambiants." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT062/document.

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L’Internet-of-Things désigne un développement en plein essor d’objets interconnectés et qui sont susceptibles de modifier nombre de services au sein de l’industrie comme pour la personne. Les développements actuels buttent sur plusieurs verrous dont celui de l’autonomie énergétique des objets ou encore des procédés de fabrication économiquement acceptables et respectueux de la planète. Dans ce contexte, la récupération d'énergie est une thématique largement répandue faisant appel à des sources très variées (mécanique, thermique, électromagnétique...). Cette thèse est notamment orientée vers la
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Guigue, Sébastien. "Développement, intégration et prototypage d'un noeud-capteur autonome à récupération d’énergie pour réseaux de capteurs sans fil." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0082.

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Il y a eu une recrudescence du nombre de dispositifs connectés dans le contexte de l’Internet des objets. La multiplication des réseaux de capteurs sans fil a conduit à une augmentation du nombre de batteries et de déchets générés. Dans un contexte d’électronique verte, le développement de circuits autonomes alimentés par la récupération d’énergie doit être géré. Le premier chapitre donnera un aperçu des réseaux de capteurs sans fil, y compris une brève histoire de ces systèmes, les différents domaines d’application, les défis et quelques solutions possibles pour surmonter ces problèmes. Le se
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Adami, Salah-Eddine. "Optimisation de la récupération d'énergie dans les applications de rectenna." Phd thesis, Ecole Centrale de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00967525.

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Les progrès réalisés durant ces dernières années dans le domaine de la microélectronique et notamment vis-à-vis de l'augmentation exponentielle de la densité d'intégration des composants et des systèmes a participé activement à l'apparition et au développement de systèmes portables communicants de plus en plus performants et polyvalents. La R&D dans les technologies de stockage d'énergie n'a pas suivi cette tendance d'évolution très rapide ; ce qui constitue un handicap majeur dans les évolutions futures des systèmes portables. La transmission d'énergie sans fils sur des distances considérable
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Boaventura, Alírio de Jesus Soares. "Efficient wireless power transfer and radio frequency identification systems." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17374.

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Doutoramento em Engenharia Eletrotécnica<br>In the IoT context, where billions of connected objects are expected to be ubiquitously deployed worldwide, the frequent battery maintenance of ubiquitous wireless nodes is undesirable or even impossible. In these scenarios, passive-backscatter radios will certainly play a crucial role due to their low cost, low complexity and battery-free operation. However, as passive-backscatter devices are chiefly limited by the WPT link, its efficiency optimization has been a major research concern over the years, gaining even more emphasis in the IoT context.
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37

Andia, Vera Gianfranco. "Analyse et exploitation des non linéarités dans les systèmes RFID UHF passifs." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENT052/document.

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Avec l'explosion de l'Internet des Objets (IoT), de nouveaux dispositifs permettant de tagguer les objets sont nécessaires afin de permettre non seulement leur identification mais aussi d'assurer des communications fiables et de nouvelles fonctionnalités comme la détection, la localisation ou la capture d'informations. Cette tendance s'appuie sur la technologie bien établie qu'est la radiofréquence par identification (RFID) et donc l'utilisation d'étiquettes (ou tags) faibles coûts et télé-alimentés. Dans ce contexte, de nombreux travaux au niveau de la couche d'application se tournent vers la
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WANG, CHUNG-HO, and 王中和. "RF Energy Harvesting System Design." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/s85v6z.

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碩士<br>國立勤益科技大學<br>電子工程系<br>107<br>In a wireless sensor network (WSN), an individuality battery is required for supporting its corresponding node among many separated sensor nodes to operate individually. How to supply a continuous power to sensor nodes is a key issue of WSN design. Therefore, energy harvesting techniques become increasingly important in solving WSN power supply issue or enhance the battery life cycle. The work focus on building energy harvesting system by using different RF antenna structures along with rectifier and storage for two different radio frequency of 915MHz and 2.4G
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Chen, Yi-Ping, and 陳毅平. "Rectifier Design for RF Energy Harvesting." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/72690772754741227168.

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碩士<br>國立勤益科技大學<br>電子工程系<br>102<br>Wireless Sensor Network (WSN) is composed of many distributed sensors with requirement of self-powering through the use of energy harvesting techniques. In this thesis, charge pump is used to design rectifier for radio frequency (RF) energy harvesting. Both the voltage attenuation and dead zone problems will be discussed that are occurred when traditional charge pump used in RF energy harvesting systems. The differences of the charge pump design individually based on Normal-Vth, Low-Vth and Zero-Vth transistors are analyzed. A compensation approach is proposed
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Huang, Jhuang-Dian, and 黃莊典. "Rectifier Design for RF Energy Harvesting Systems." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/41952226343587996449.

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碩士<br>國立勤益科技大學<br>電子工程系<br>101<br>In a wireless sensor network (WSN), sensors are distributed in a field to monitor environmental variables such as temperature, sound, vibration, pressure, and so on. Then, these data are transmitted over the network to the base stations. WSNs require sensor nodes which must be small, with simple structure and low cost. It also needs long-distance communication technique to obtain a variety of information and to minimize the number of base stations. How to supply a continuous power to sensor nodes is a key issue of WSN design. Therefore, energy harvesting techn
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Kuo, Chen-Yi, and 郭鎮億. "Wide Input-Range RF Energy Harvesting System." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/a9th37.

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碩士<br>國立交通大學<br>電機工程學系<br>107<br>With the blossom of the Internet of Things (IoT) in recent years, the demand of wireless sensors increases rapidly. Conventionally, these sensor nodes are powered by chemical batteries, which usually have a limited lifetime and large size/volume. RF wireless powering technology provides an alternative way to extend the battery lifetime or to supply the low-power sensor nodes without battery. However, to realize a high-efficiency power conversion system for wide-range RF energy harvesting is still a big challenge due to the tradeoffs between the sensitivity and
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42

Kaddi, P. "Analog Front End for RF Energy Harvesting." Thesis, 2014. http://raiith.iith.ac.in/118/1/EE11M10.pdf.

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This thesis proposes a design for ultra low power sensitive single and dual band RF energy harvesting system for UHF microwave frequencies at 2.4-GHz and 865-MHz to 960- MHz(ISM band). The system is designed to power a load and generate a constant 1-V output voltage for a battery-less passive energy harvesting circuit. Input power is fed from 50 RF source to emulate antenna at UHF microwave band. The design includes single band and dual band off-chip RF matching circuit, RF limiter, Differential Rectifier, Power On Reset (POR), Band Gap Reference (BGR) and Low Drop Out Regulator (LDO). T
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Zhao, Ping. "Energy Harvesting Techniques for Autonomous WSNs/RFID with a Focus on RF Energy Harvesting." Phd thesis, 2012. https://tuprints.ulb.tu-darmstadt.de/3102/1/phd_diss_ZhaoPing.pdf.

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Supply circuits that harvest energy from surrounding ambient or dedicated sources have drawn much interest recently for providing a possibility of energy-autonomy to the wireless sensing devices. The objective of this thesis is to optimize the power transfer efficiency of the RF/microwave energy transducers in WSN/RFID applications. For this purpose, analysis on the power utilization of the wireless devices at different working states has been done, which implies a space of improving the power transfer efficiency by employing a novel design concept in the RF/microwave energy transducers. In o
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Lin, Chih-Hsi, and 林之曦. "Design of Wearable Low Power RF Energy Harvesting Rectenna." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/hc434w.

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碩士<br>國立宜蘭大學<br>電子工程學系碩士班<br>106<br>The thesis aims at designing wearable low-power RF energy harvesting rectenna for healthcare, monitoring or the sensor on the human body. The rectenna has a rectifier and a patch antenna which is linear-polarized. The harvester was operated in the 2.45 GHz band and the 5.8 GHz band to capture the electromagnetic radiation energy. The choice of fabric and the electrical properties of the material are very important due to design for wearable devices. The wearable textile material we selected for on-body applications is cordura fabric. Using Schottky diodes to
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You, Jing-Wei, and 游景崴. "Characterization of Antenna Design for Indoor RF Energy Harvesting." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/3g754w.

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碩士<br>國立臺北科技大學<br>電子工程系<br>106<br>In this paper, the radiation features of radio-frequency (RF) energy-harvesting antennas are analyzed, and the design guidelines that enhance receiving power is proposed. It is acknowledged that an RF energy-harvesting antenna is desired to depict circular polarization (CP) and omnidirectional patterns, as ambient sources are omni-presented; however, the polarization features and half-power beamwidth (HPBW) of the antenna are inconclusive in earlier studies. To clarify the requirement of radiation characteristics, we analyze the receiving performance of six an
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Huang, Yi-Hao, and 黃奕豪. "A Dual-Band Loop Rectenna for RF Energy Harvesting." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/94hm42.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>106<br>This study is the dual-band rectenna that apply to the home wireless access point (WAP or AP) for wireless energy harvesting. At present, most of the mainstream wireless receivers are dual-band 2.4 GHz (2.400 to 2.500 GHz) and 5 GHz (5.725 to 5.875 GHz) settings, so the design of the rectenna frequency is also for this dual band. Since the antenna of the home wireless receiver is a linear polarization monopole antenna, the design of the dual-band rectenna in this study is based on a loop antenna. The dual-band effect can be achieved by the turning of the anten
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Liu, Yu-Chun. "RF Energy Harvesting for Implantable ICs with On-chip Antenna." Master's thesis, 2014. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6129.

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Nowadays, as aging population increasing yearly, the health care technologies for elder people who commonly have high blood pressure or Glaucoma issues have attracted much attention. In order to care of those people, implantable integrated circuits (ICs) in human body are the direct solution to have 24/7 days monitoring with real-time data for diagnosis by patients themselves or doctors. However, due to the small size requirement for the implanted ICs located in human organs, it's quite challenging to integrate with transmitting and receiving antenna in a single chip, especially operating in 5
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48

Tain, Longwen-Wen, and 譚隆文. "An RF Energy Harvesting Circuit design Using Resonator Coupling Technique." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/26809468915003195003.

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碩士<br>國立交通大學<br>電機學院電子與光電學程<br>103<br>The technology of semiconductor process is getting to forge ahead vigorously, which enables the miniature autonomy devices designed with low power consumption (for example, passive RFID tag or wireless sensor node) after utilizing their internal power management circuit, so as to upgrade their efficiency in power-saving and energy use. The potentials to use energy harvesting circuit for energy conversion by way of mechanical vibration, heat, solar energy, and radio energy, into power storage equipment giving power supply for low power consumption devices a
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Balakumar and 巴拉. "CMOS RF Energy Harvesting System with Improved Voltage Conversion Efficiency." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/06382532747794295366.

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碩士<br>國立中興大學<br>電機工程學系所<br>100<br>Energy Harvesting is a challenging task nowadays since there are many Energy harvesting techniques like solar, piezoelectric, vibration, thermal and so on RF energy harvesting has been attractive these days due to its ability to convert from ambient air into electrical Energy. The availability of RF Power is quite less compared to other kind of sources. It deals with designing the following blocks such as power conversion (AC-DC) unit , matching network and power management (DC-DC boost Converter) in order to charge some low power portable devices. In RF pow
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50

Lin, Shu-Hsuan, and 林書玄. "Wide Input Range Power-Management System for RF Energy Harvesting." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/87491137910932146759.

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