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Tesis sobre el tema "RFID tag design"

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Publicado: 4 de junio de 2021
Última modificación: 13 de febrero de 2022

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1

Chirammal, Ramakrishnan Rijwal. "RFID Tag Design and Range Improvement." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/22921.

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Radio Frequency Identification (RFID) is a short range radio technology for communication between two objects namely, a reader and a tag. Design of an RFID tag with the best range is always the motive of an RFID designer. In this thesis two RFID tags were simulated, designed and manufactured. The first one is a semi-passive RFID tag, which also serves as a discrete prototype tag for the research group to master RFID tag designs. The user can program and further extend the use of this tag according to the requirements. This RFID tag is provided with JTAG interface to program and debug. The read
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Kam, ChiWeng. "902-928MHz UHF RFID Tag Antenna Design, Fabrication and Test." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/598.

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Radio Frequency Identification (RFID) uses RF radiation to identify physical objects. With decreasing integrated circuit (IC) cost and size, RFID applications are becoming economically feasible and gaining popularity. Researchers at MIT suggest that RFID tags operating in the 900 MHz band (ultrahigh frequency, UHF) represent the best compromise of cost, read range, and capabilities [1]. Passive RFID tags, which exclude radio transmitters and internal power sources, are popular due to their small size and low cost [1]. This project produced Cal Poly’s first ever on-campus printed, assembled, an
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3

Wu, Xunxun. "Design of Passive UHF RFID Tag Antennas and Industry Application." Thesis, Högskolan i Gävle, Institutionen för teknik och byggd miljö, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-8052.

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Nowadays, there is a growing demand for reliable assets security and management in various industries. The company SolarWave is eager to implement a comprehensive security system to produce active protection for their expensive product: solar panels. This security system is not only including assets tracking, monitoring but also combined with a control system, which is used to binary control a switch of solar panel to be on in presence of the correct ID and off in absence of the correct ID. One of the technologies that made this concept viable is known as Radio Frequency Identification (RFID).
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4

Yang, Li. "Design and development of novel radio frequency identification (RFID) tag structures." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31824.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Tentzeris, Manos; Committee Member: DeJean, Gerald; Committee Member: Ingram, Mary; Committee Member: Kavadias, Stylianos; Committee Member: Laskar, Joy. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Shao, Shuai. "Design and Optimization of Passive UHF RFID Tag Antenna for Mounting on or inside Material Layers." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1435758466.

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Butt, Munam. "Systemization of RFID Tag Antenna Design Based on Optimization Techniques and Impedance Matching Charts." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23064.

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The performance of commercial Radio Frequency Identification (RFID) tags is primarily limited by present techniques used for tag antenna design. Currently, industry techniques rely on identifying the RFID tag application (books, clothing, etc.) and then building antenna prototypes of different configurations in order to satisfy minimum read range requirements. However, these techniques inherently lack an electromagnetic basis and are unable to provide a low cost solution to the tag antenna design process. RFID tag performance characteristics (read-range, chip-antenna impedance matching, surrou
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7

Horák, David. "Návrh meandrovité antény pro RFID aplikaci." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217472.

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This thesis deals with RFID tags. In the first part of the thesis, the general overviews of the present-day RFID systems are presented. This part of the thesis is focused on the passive back-scatter UHF tags and the advantages of their application in supply chain usage. Subsequently, the electromagnetic simulators CST Microwave Studio and IE3D Zeland are described. These simulators were used to design loaded meander antennas. The antennas were designed for different materials and frequency bands of 867 MHz and 2.4 GHz. The designed antennas were made without as well as with the reflector which
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8

Souza, Aline Coelho de. "Conception d’antennes et méthode de caractérisation des systèmes RFID UHF en champ proche et en champ lointain." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAT095/document.

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La technologie d'identification par radiofréquence (RFID) a eu un essor très important ces dernières années notamment grâce à sa configuration polyvalente et aux innombrables possibilités d'intégration offertes par cette technologie notamment avec l'apparition d'un nouveau contexte applicatif celui des objets connectés. Depuis quelques années, des applications de la RFID UHF en champ proche ont été notamment développées afin de surmonter les problèmes liés à la dégradation de lecture des tags lorsqu'ils sont placés dans des milieux fortement perturbateurs. Les travaux de recherche présentés da
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Marques, João Miguel da Conceição. "Análise dos fatores que influenciam a eficiência da tecnologia RFID aplicada a sistemas de produção." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/75902.

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Os sistemas de identificação por radio frequências (RFID - Radio Frequency IDentification) são uma tecnologia de transmissão e armazenamento de informação remota, composta por dispositivos (etiquetas e leitores RFID), que comunicam à distância sem necessitarem de qualquer contato direto. Embora a RFID possua algumas décadas de existência, apenas nos últimos anos tem recebido atenção por parte do meio industrial e demonstrado ser uma tecnologia com um futuro promissor, devido especialmente às suas inúmeras possibilidades de utilização e vantagens que possui quando comparada com outras tecnologi
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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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Gao, Jinlan. "Antenna-based passive UHF RFID sensor tags : Design and application." Doctoral thesis, Mittuniversitetet, Avdelningen för elektronikkonstruktion, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-19889.

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RFID, as a low cost technology with a long life time, provides great potential for transmitting sensor data in combination with the ordinary ID number. The sensor can, for example, be integrated either in the chip or in the antenna of an RFID tag.This thesis focuses on the design of antenna-based UHF RFID sensor tags as wireless sensors at the lowest possible cost level compatible with standard communication systems in logistics. The applications of the sensor tags, in this work, mainly target remote humidity sensing. Antenna-based sensory UHF RFID tags utilize the influence that the physical
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Nordström, Edward, and Johan Hollander. "Design och implementering av enhandsburen RFID-läsare." Thesis, Jönköping University, JTH, Computer and Electrical Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-6752.

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<p>Radio frequency identification (RFID) is a versatile wireless technology usedworldwide. The fields of applications are many and its popularity constantlygrows due to smaller in size, better and less expensive components. RFID isused to identify, track or share information about an object using radio waves.</p><p>This master thesis describes the process of designing and implementing ahandheld UHF RFID reader. The goal was to, based on a UHF RFID-chipdesign a fully functional, small in size and power efficient device. Amicrocontroller provides the user interface and is also used to control th
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13

Battistini, Nicholas. "Digital design of an EPC Gen2 controller for enhanced RFID tags." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19641/.

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This thesis presents an improvement of the long range battery-less UHF RFID platform for sensor applications which is based on the open source Wireless Identification and Sensing Platform (WISP) project. The purpose of this work is to design a digital logic that performs the RFID EPC gen2 protocol communication, is able to acquire information by sensors and provide an accurate estimation of tag location ensuring low energy consumption. This thesis will describe the hardware architecture on which the digital logic was inserted, the Verilog code developed, the methods by which the digital logic
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14

Frushour, John H. "Design considerations for a computationally-lightweight authentication mechanism for passive RFID tags." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Sep/09Sep%5FFrushour.pdf.

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Thesis (M.S. in Computer Science)--Naval Postgraduate School, September 2009.<br>Thesis Advisor(s): Fulp, J.D. ; Huffmire, Ted. "September 2009." Description based on title screen as viewed on November 6, 2009. Author(s) subject terms: Passive RFID Systems, Tags, Clock, Electro-magnetic induction, authentication, hash, SHA--1. Includes bibliographical references (p. 59-60). Also available in print.
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Akbar, Muhammad Bashir. "Design and prototype development of motion and shock sensing rf tags." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/43666.

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Since the inception of the backscatter-radio technology, this field has continually evolved. As a result, this technology is used for a multitude of applications like personnel identification, logistics and assets management and military purposes etc. Radio Frequency Identification (RFID) technology works in several ISM-frequency bands. This work pertains to the design and development of an RF tag that uses 5.8 GHz ISM band for backscatter. This frequency band has many inherent advantages like higher gain antennas, smaller sized tags, increased immunity to conductive object losses, and larger
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16

Atojoko, Achimugu A. "Design and Modelling of Passive UHF RFID Tags for Energy Efficient Liquid Level Detection Applications. A study of various techniques in the design, modelling, optimisation and deployment of RFID reader and passive UHF RFID tags to achieve effective performance for liquid sensing applications." Thesis, University of Bradford, 2016. http://hdl.handle.net/10454/15906.

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Sewer and oil pipeline spillage issues have become major causes of pollution in urban and rural areas usually caused by blockages in the water storage and drainage system, and oil spillage of underground oil pipelines. An effective way of avoiding this problem will be by deploying some mechanism to monitor these installations at each point in time and reporting unusual liquid activity to the relevant authorities for prompt action to avoid a flooding or spillage occurrence. This research work presents a low cost energy efficient liquid level monitoring technique using Radio Frequency Identifica
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17

Kalayci, Sefa. "Design Of A Radio Frequency Identification (rfid) Antenna." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610554/index.pdf.

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Fundamental features of Radio Frequency Identification (RFID) systems used in different application areas will be reviewed. Techniques used in realizing RFID antenna systems will be studied and the procedure to realize a specific RFID antenna type possessing desired characteristics will be described. Electrical properties such as radiation pattern, impedance will be predicted using analytical and/or computer simulation techniques. Experimental investigations will be carried out to complement the theoretical work.
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18

Holland, William S. "Development of an Indoor Real-time Localization System Using Passive RFID Tags and Artificial Neural Networks." Ohio University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1249062541.

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19

Zuffanelli, Simone. "Antenna design solutions for radio frequency identification (RFID) tags based on metamaterial-inspired resonators and other resonant structures." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/314186.

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Avui dia, la identificació automàtica i unívoca d’objectes s’està imposant com a necessitat creixent a nivell global, degut al ràpid increment de la producció i del comerç mundial. En resposta, la identificació per radiofreqüència (RFID) està emergint com una alternativa viable i més evolucionada al codi de barres, i està sent utilitzada en una multitud d’aplicacions diferents, tal com el seguiment de paquets, els inventaris intel·ligents, el control d’accessos i el pagament sense contacte. Encara que la tecnologia RFID ha aconseguit entrar amb èxit en la nostra vida diària, oferint una soluci
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20

Saldanha, Nancy. "Modeling, design and fabrication of orthogonal and psuedo-orthogonal frequency coded SAW wireless spread spectrum RFID sensor tags." Doctoral diss., University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5025.

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Surface acoustic wave (SAW) sensors offer a wireless, passive sensor solution for use in numerous environments where wired sensing can be expensive and infeasible. Single carrier frequency SAW sensor embodiments such as delay lines, and resonators have been used in single sensor environments where sensor identification is not a necessity. The orthogonal frequency coded (OFC) SAW sensor tag embodiment developed at UCF uses a spread spectrum approach that allows interrogation in a multi-sensor environment and provides simultaneous sensing and sensor identification. The SAW device is encoded via
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21

López, Soriano Sergio. "Diseño de antenas para etiquetas de RFID en escenarios de alta exigencia." Doctoral thesis, Universitat Autònoma de Barcelona, 2018. http://hdl.handle.net/10803/462033.

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Los avances tecnológicos vividos en las últimas décadas han propulsado la implantación de los sistemas de identificación por radiofrecuencia (RFID) dentro de una amplia variedad de campos de aplicación, entre los que se encuentran la cadena de distribución industrial u otras de ámbito popular como el conocido sistema de pago en peajes (teletag). La buena acogida de esta tecnología dentro de la sociedad moderna impulsa la constante aparición de nuevas aplicaciones. Ello conlleva la constante evolución de los sistemas de RFID con el fin de proveer soluciones específicas que cumplan con los req
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Tan, Jun [Verfasser], Eckhard Akademischer Betreuer] Hennig, Klaus [Akademischer Betreuer] [Hofmann, and Ralf [Gutachter] Sommer. "Design methodology and implementation of fully passive RFID SoC with temperature sensor / Jun Tan ; Gutachter: Ralf Sommer ; Eckhard Hennig, Klaus Hofmann." Ilmenau : TU Ilmenau, 2021. http://d-nb.info/1232176060/34.

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HUANG, LIN-SIANG, and 黃麟翔. "Passive RFID Tag Design." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/x76e77.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>99<br>In this study, the approach to design RF to DC and demodulator which both have 905MHz operation frequency is the process of the UMC 90 nm CMOS. The functions of those are to provide DC voltage and demodulate signal in the structure of Passive RFID Tag application. Through the simulation, the minimum input power, output voltage, and the maximum power efficiency are -10 dBm, 1.08 V, and 4.9% respectively. The measurements of the chip, which sizes 0.46×0.52 mm^2, are -10 dBm, 1.08 V, and 1%. Moreover, the range of the data rate is 16.6 Kbps to 25 Kbps. TSMC 0.18um
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Chiuan, Chang Chia, and 張家銓. "Design of RFID Tag Chip." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/53529345138664861697.

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碩士<br>中華大學<br>電機工程學系碩士班<br>92<br>This thesis is about the circuit design of the Tag part in the Radio Frequency Identification (RFID) system and the basic function of Tag. The design procedures include the simulation of digital software and functions; the next is the design of the basic logic gates and analog circuits and the last one is the considerations for IC layout.The first part of the thesis includes the introduction, the planning of the RFIDsystem, the formation and formulation of the specification of RFID system, and the second part focuses on chip design, measurement, and the conclus
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Chen, Yu-Min, and 陳育民. "Design of RFID semi-passive tag." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/74301647329630234289.

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碩士<br>國立高雄海洋科技大學<br>海洋工程科技研究所<br>96<br>Abstract Over the past few years, the application of RFID (Radio Frequency Identification) is wider and deeper than before. For example, access security, medical process control, goods tracking, and tickets used in public transportation, may penetrate the RFID technology the application to obtain the good monitoring and tracing. This thesis is about the circuit design of the Tag part in the Radio Frequency Identification system and the basic function of Tag, and the circuit contains three parts；clock generate circuit , digital encoder circuit, and analog
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Lee, Ming-Shiang, and 李銘祥. "Design of 915MHz RFID Tag Antenna." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/17452450408484838811.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>96<br>This paper focuses on the design of 915MHz RFID（Radio Frequency Identification）tag antenna. First We introduce the structure of RFID and its basic theory，Then We design the antenna with a single-layer structure， and use low-cost FR4 as the subtrate . And by directly matching the antenna input impedance to the tag input impedance , the maximum power could be delivered . Then we design and implement the 915 MHz tag antenna . We also compare the difference between antennas mounted on a cardboard box or on a conductor. And design a 915 MHz tag an
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Shao, hung Chen, and 鄭紹宏. "Design of Miniaturized RFID Tag Antennas." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/63955762823247625802.

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碩士<br>國防大學中正理工學院<br>應用物理研究所<br>96<br>In this thesis, three small RFID tag antennas are proposed. They are all of half-wave dipole types and operated at UHF and 2.45GHz dual bands. Good radiation efficiency, omni-directional radiation patterns and more shortened physical length than that of a conventional half-wave dipole antenna are also the essential requirements for the proposed antennas. There are different constructions for the radiators of the three proposed antennas. For reducing the whole length of a half-wave dipole antenna, the first antenna design has a Minkowski Island Fractal const
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Chung, Hsin-Hsiao, and 鍾欣曉. "Design of UHF RFID Tag Antennas." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/44084060923577273135.

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碩士<br>中華大學<br>電機工程學系(所)<br>95<br>AbstractIn this thesis, a method of designing passive radio frequency identification (RFID) tag antenna in UHF band is presented. Impedance conjugate matching between the antenna and the chip is very important to design a good tag antenna. But the impedance of chip is not usually to design in 50 ohm; it causes the impedance conjugate matching difficulty. In addition, measurement environment and application material will influence impedance and characteristic of the tag antenna. In order to solve these problems, we uses load pull measurement to discuss impedance
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Huang, Chih-Cheng, and 黃志成. "Design of UHF RFID Fractal Tag Antenna." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/t99qur.

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碩士<br>國立臺北科技大學<br>機電整合研究所<br>98<br>This thesis aims to develop miniaturized tag antennas that can be applied on objects. The novel tag antenna has features of low-power consumption, low cost, easy to fabricate, and sufficient transmission range. To increase the efficiency of this miniaturized antenna, we use Hilbert fractal structure. The Hilbert fractal structures can be used to enhance bandwidth and gain performance, while reduce the antenna size at the same time. In this study, we designed three types of tag antenna to accommodate three different operation scenarios: standalone (unattached
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Chiang, Tseng-Hsu, and 江增旭. "Design of RFID Tag and demodulation Chip." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/08638497941158014860.

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碩士<br>國立高雄第一科技大學<br>電腦與通訊工程所<br>98<br>RFID is widely used in daily life, such as money card, building management access control system, map information Guan loan system, road toll systems. In this thesis, we design the passive tag chip and reader chip. The RFID tag is to modulate the data, where the system is divided into five parts: double voltage circuit, voltage regulation circuit, ring oscillator, SPI interface, signal modulation circuit. The reader chip is mainly to demodulate the RF signal to digital code, where the system includes the signal control circuit, ring oscillator, TSPC count
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Lin, Wang-Chi, and 林旺旗. "Dual Antenna Semi-passive RFID Tag Design." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/89064576053252303559.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>97<br>This thesis proposed a novel radio frequency identification (RFID) tag based on the multiple input multiple output (MIMO) technique to improve the system performance under multi-path fading environment. For the forward link (Reader to tag), the tag can improve the performance of forward link by processing signals received from two orthogonal polarized antennas. For the reverse link (Tag to reader), the transmit diversity technique is adopted to improve the backscatter signal quality in reverse link. The experiment results demonstrate that the proposed tag
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HUNG, CHIEN-FENG, and 洪健峰. "Design of UHF RFID Tag Antennas and Development of RFID Systems." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/xf2f64.

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碩士<br>國立高雄應用科技大學<br>光電與通訊工程研究所<br>105<br>In this article, Design for a radio-frequency identification (RFID) tag antenna mounted on a metallic plane is presented. A prototype antenna was designed for an Alien Higgs-4 chip (input impedance, 10 − j150 Ω and power sensitivity, −19.5 dBm at 925 MHz). The physical dimensions of the tag antenna with a H-slot exciter were adjusted to obtain a conjugate match to the chip impedance. Antenna gain is enhanced by adjusting Metal spacing to optimize capacitive coupling between the radiating plate and metallic plane. By adding a shorting mechansism also shi
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Ko, Chan-An, and 柯建安. "RFID Passive Tag Antenna Design for Metal Materials." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/84458539310445318023.

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碩士<br>義守大學<br>電機工程學系碩士班<br>98<br>Studied in this paper can be used in the steel material in the passive RFID tag antenna design,the band for the UHF, the first single-frequency antenna is 915MHz, using FR4 substrate, a microstrip antenna in the above engraving. FR4 substrate as the back just like a layer of copper, was made out of the back of the microstrip antenna has been equipped with a flat metal material characteristics, of course, steel is one of metal materials. Next came the role of 915MHz, 1.7GHz, 2.4GHz, three bands of tri-band antenna, the same as the substrate is FR4 board to make
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Lai, Yu-Chang, and 賴佑昌. "Design of RFID Tag Antenna for Life Convenience." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/53197099507189063640.

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碩士<br>國立高雄應用科技大學<br>光電與通訊研究所<br>98<br>The purpose for this thesis is to better our daily life through the antenna design of the RFID tag. By using two different commercial RFID chips as the feed mechanism, antenna design of tags can variably be applied on three various elements, including plastic bag, firework and Watt-hour meter. Dielectric constant and thickness are also altered relatively by the different material surface which RFID is stuck on. These factors cause the conjugate matching effect between tag antenna and chips as well as further affect the read distance of tag antenna. The mai
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Liang, Kai-Jun, and 梁凱鈞. "Design of RFID Tag Antenna for Life Application." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/52939849403084652188.

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碩士<br>國立高雄應用科技大學<br>光電與通訊研究所<br>99<br>In this thesis, the study mainly focuses on the UHF RFID tag antenna. There are three kinds tag antennas designed for library management, license plate and metal material. The tag antennas attached to the goods have different characteristics because of the goods with different dielectric constant and thickness. When the tag antenna is attached to the different goods, it will significantly affect the impedance mismatching of the antenna and chip IC. In this thesis, the proposed tag antenna can overcome those disadvantages. In “Design of a double loop folded
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Wu, Yu-Jie, and 吳育榤. "Design of RFID Tag Antennafor Convenient Storage Management." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/70733847767977394422.

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碩士<br>國立高雄應用科技大學<br>光電與通訊研究所<br>99<br>In this thesis, the study mainly focuses on the RFID tag antenna for goods management. There are three kinds of tag antenna designed for library management, clothing tags and metal applications. The result of the tag antennas attached to the goods has their own characteristic because of the goods with different dielectric constant and thickness. These factors cause the impedance mismatching of the antenna and chip IC. In this thesis, the proposed of the tag antenna can be overcome these disadvantages. In “Design of a dual rectangular tuning element tag ant
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37

Chang, Wen-Fan, and 張文帆. "Design of RFID Tag Anetnna for UHF Band." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/43900107577466498009.

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碩士<br>正修科技大學<br>電子工程研究所<br>95<br>Novel and low-cost antennas suitable for RFID-Tag are presented. Dipole antennas, folded dipole antennas, CPW slot antennas have been applied in the proposed designs, and good performance has been obtained. To transmit the maximum power between the antenna and the microchip, it has to be conjugate matching. The operating bandwidths of the proposed antennas can satisfy the requirement of all country. These desirable features of the tag antenna is confirmed by the measured results presented herein.
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38

Lu, Chi-Feng, and 盧濟豐. "Design and Implementation of High Security RFID Tag." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/47934563380765733721.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>95<br>Along with the advancing technologies and completeness of RFID worldwide specifications in the recent years, RFID applications have been commonly adopted and utilized in industry, business environment and getting deeper involved into daily activities, with the rapid growing usages in RFID technologies, many aspects associated with RFID have put to discussion both academically and industrially, most of the discussions were surrounding the subjects of protecting personal privacy and way of safe guarding the stored data during the operation, and yet, many academi
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39

Liao, Kuan-Chi, and 廖冠集. "Design of RFID Tag Antennas for Metallic Objects." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/pv4ckz.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>94<br>In this thesis, UHF radio frequency identification (RFID) tag antennas that can be used on metallic objects are studied. An electromagnetic numerical simulation software package, HFSS, is applied in this study to analyze and design the RFID tag antennas. The types of the tag antennas include the slot antenna, meandered-line antenna, and dipole antenna. The prototypes of the RFID tag designs are fabricated and then measured in the anechoic chambers of NTUST Communication and Electromagnetic Technology Center to verify the performance of those tag antennas. Also,
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40

Wu, Hsin-Hong, and 吳信弘. "Design of RFID Tag Antenna for Merchandise Applications." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/61271541554797071201.

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碩士<br>國立高雄應用科技大學<br>光電與通訊研究所<br>97<br>The purpose of this thesis is the design of RFID tag antenna for merchandise applications. These are three kinds of antenna are proposed, including dipole antenna, dual dipole and loop antenna. In chapter 2, a dipole antenna with glass substrate is proposed, and it has good omni-directional radiation. It is operating frequency includes both ETSI(860 ~ 865 MHz) and FCC(902 ~ 928 MHz) and JAN(952 ~ 954 MHz). In chapter 3, a symmetrical dual-dipole antenna with a tuming ring for glass application is designed. In this design, the radiation area increases that
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41

Lin, Yueh-Ching, and 林岳敬. "DESIGN OF LOGO-BASED TAG ANTENNAS OF RFID." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/46237123021340598826.

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碩士<br>大同大學<br>通訊工程研究所<br>96<br>The major purpose of this thesis is to design logo-based tag antennas of RFID. According to different applications, we also adopt different substrates and manufacturing ways. If the company’s logo or brand names are embedded into antennas, it is easy for identification of tag’s company. In this thesis, we design RFID tag antennas based on the Logos of CTCI Corporation and Taiwan Lamination Corporation. We adopt RF techniques and the complex conjugate matching concept from circuit theory for these designs. Through the concepts, the logo-based antenna that we d
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42

Jheng, Jhih-Kai, and 鄭至凱. "Design of RFID Tag Antennas for Building Applications." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/99350838887711868860.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>96<br>This thesis studies the design of RFID tag antennas for building applications . The form of tag antennas include both anti-counterfeit cable tie tag antennas and doorplate tag antennas . An electromagnetic numerical simulation software package , HFSS , is applied to analyze and desige tags in this study . The prototypes of the RFID tag designs will be fabricated later . A parameter study is performed to investigate the impedance characteristics of the antennas with respect to antenna geometries during the simulation , and to expect these two tags could be confo
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43

Peng, Jhih-Guo, and 彭智國. "A Battery-assisted Passive UHF RFID Tag Design." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/88191383975282428154.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>96<br>This paper based on a multi-carrier method presents the design of an enhanced passive tag (EPT) that can extend the read range of an EPCglobal Class1 Gen2 (C1G2) tag by attaching a battery-assisted circuit (BAC) to the tag IC. The BAC generates a low power unmodulated continuous wave with frequency outside the tag operating band to supply additional power to the tag. In this work Agilent Advanced Design System software is used to simulate an EPT, which validates that the tag IC can harvest both signal powers from the reader and the BAC. With the same reader tra
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44

Li, Ming-Hsien, and 李明憲. "UHF Passive Tag Design for Multi-Carrier RFID Systems." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/57848612189506954242.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>101<br>Passive RFID system is the most popular system be used all over the world. In this system, a passive RFID tag gains its power from reader emitting electromagnetic wave, and backscatter its responding signal to the reader. However, Because of the large propagation loss, the accessible range of a passive RFID tag is hence limited. In order to mitigate the problems, a multi-carrier UHF passive RFID system utilizes isolated continuous wave emitters to provide additional power to passive RFID tags. This approach however reduces the modulation depth of reader comman
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45

Lu, Ying-Hao, and 呂英豪. "Design of UHF RFID Tag Antennas for Metallic Environments." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/w9w9v3.

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碩士<br>國立高雄應用科技大學<br>光電與通訊工程研究所<br>103<br>Three UHF RFID tag antennas designed for Alien H4 chip are presented in this thesis. The design techniques of tag antennas applied to around metal environments are especially addressed. The first antenna is a tag antenna with U-shaped slot. It uses an monopole structure to radiate the U-shaped slot on ground. The second antenna is a tag antenna combine a metal ring which is used to the metal container. This design allows the tag to improve the performance to metal effects. The last one is a circularly polarized tag antenna, which is using an L-type coup
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46

Liao, Min-Jyun, and 廖敏君. "Miniaturized Design and Measurement of UHF RFID Tag Antenna." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/67458290086335379680.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>97<br>Although the origin of radio frequency identification (RFID) technology can be traced back to many years ago, it is only recently that RFID has experience rapid growth. A novel miniaturized UFH RFID tag antenna is presented in this thesis. The antenna is bounded by two circles, the inner and outer diameters of which are 6.5 and 27 mm, respectively. The operating band of the design tag antenna should cover the UHF RFID bands of 922-928 MHz (allocated in Taiwan) and 902-928 MHz (designated in the USA). For compactness, the radiating element of the tag antenna
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47

Liu, Chia-Ling, and 劉家綾. "Design of RFID Tag Antennas for Metal Material Applications." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/59789830806405267453.

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碩士<br>國立高雄應用科技大學<br>光電與通訊研究所<br>96<br>In this thesis, the study mainly focuses on the RFID tag antenna for metal material applications. These antennas are designed based on the use of planar dipole antenna with the commercial tag chip. Three different types of the antenna are proposed for achieving the applications on the metal materials. In “Design of Planar Dipole Antenna with coupled stub for RFID Tag,” a coupled stub is added for achieving required operation and the maximum read range is about 4.9 m. In “Design of Planar Dipole Antenna with matching loop for RFID Tag,” a matched loop and e
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48

Ku, Pau-Wen, and 顧寶文. "900 MHz 8-bit passive CMOS RFID Tag Design." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/98605949660315298677.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>97<br>This thesis presents a 900MHz 8-bit passive CMOS RFID Tag with 40-stage charge pumps. There is no oscillator in the proposed tag to save power such that the read distance is increased. The tag is fabricated using the TSMC 0.18 μm CMOS process. The measured minimum input power is -16.7dBm, the supply voltage is 0.7V to 1.6V, and the charge pump’s maximum power efficiency is 33% at input power equal to －21 dBm.
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49

Chen, Wei-Jun, and 陳煒潤. "Chip design and layout for the Passive RFID Tag." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/47482618631951507147.

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碩士<br>吳鳳技術學院<br>光機電暨材料研究所<br>97<br>In recent years, due to the rapid development of wireless technology, there is an increasing demand for wireless applications, one of which is radio frequency identification system (RFID). RFID application is very convenient and efficient for the average of daily life, Examples include: building access control management, car alarm chip. 　　This thesis, investigates the passive RFID tag design, including the design of the Rectifier and limitation circuit, Power-on-reset circuit schematic, Detector, data slicer and decoder and Control logic and shift register a
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50

Cho, Chih-Chung, and 卓志忠. "DESIGN OF RFID TAG ANTENNA FOR MOBILE PHONE APPLICATIONS." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/91670520119337496001.

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碩士<br>大同大學<br>通訊工程研究所<br>96<br>The main purpose of this research is to study the application of RFID technology on mobile phone. The scope includes mainly on the assessment of the performance of two designed tags. This study first covers the design and optimization of antenna for RFID Tags both of HF (high Frequency) and UHF (Ultrahigh Frequency) band. The HF band RFID tag antenna designed at 13.56MHz and UHF band RFID tag antenna is designed at 915MHz based on complex conjugate matching concept. Through the complex conjugate matching concept, we can achieve the maximum power transfer for
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