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Dissertations / Theses on the topic 'Linear antennas'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Aqbi, Sadiq. "Improving the Performance of Dual Linear Polarization Antennas with Metamaterial Structures." Doctoral thesis, Universitätsbibliothek Chemnitz, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-233539.

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In this dissertation, the operation of dual-linear polarized antennas is considered in order to provide ideal performance suited for several applications including polarimetric synthetic aperture radar (SAR), wireless and satellite communications. The underlying objectives realized in this work are reported as design realizations of dual-linear polarized antennas with low cross polarization patterns and high isolation between ports that employ special properties of the electromagnetic metamaterial (MTM) structures. Some of these key properties appear as negative permittivity, negative permeabi

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2

Ramadan, Ashraf. "Active antennas with high input impedance low noise and highly linear amplifiers." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975739174.

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3

Williams, Ian E. "Multipath Mitigation for Aeronautical Telemetry with Multiple Antennas." International Foundation for Telemetering, 2009. http://hdl.handle.net/10150/606143.

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ITC/USA 2009 Conference Proceedings / The Forty-Fifth Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2009 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>Frequency selective multipath is a key performance limiter for aeronautical telemetry applications. Our research explores multipath mitigation techniques with ARTM Tier-1 waveforms using linear adaptive filters, multiple receive antennas and error-based best source selection. Single antenna adaptive equalization alone is unable to substantially improve performance under certain channel conditi

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4

Allayioti, Marion. "Beam reconfigurable microstrip antennas based on parasitics with linear and circular polarisation capability." Thesis, University of Surrey, 2018. http://epubs.surrey.ac.uk/847002/.

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Millimetre wave beam and polarization reconfigurable antennas for future wireless communications are investigated in this thesis. The millimetre wave frequency spectrum has recently attracted large attention from researchers and the industry of wireless communications. Millimetre wave frequencies is considered to be the frequency spectrum between 30 GHz and 300 GHz. However, the industry considers the spectrum above 10 GHz as millimetre wave, due to the fact that it shows similar propagation characteristics with the spectrum above 30 GHz. The aforementioned spectrum of frequencies offers a lot

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5

Cuiñas, Gómez Íñigo, Luis Landesa, and Pino Marcos Rodríguez. "Using wavelets in applied electromagnetics : an algorithm for efficient pattern synthesis of linear aperture antennas." Pontificia Universidad Católica del Perú, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/97009.

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Pattern synthesis of linear aperture antennas is a classical problem in Applied Electromagnetics with a great number of resolving methods. In this paper, a new algorithm that uses wavelets to compute the solution is presented. The new method reaches a good approximation of the aperture field from the antenna radiation pattern, using the Haar wavelet basis. Results prove the performance of the proposed method.

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6

Weldon, Jonathan Andrew. "A DIRECTION FINDING SYSTEM USING LOG PERIODIC DIPOLE ANTENNAS IN A SPARSELY SAMPLED LINEAR ARRAY." Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1278470572.

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7

Chinatto, Júnior Adilson Walter. "Processamento largamente linear em arranjo de antenas = proposta, avaliação e implementação prática de algoritmos." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259282.

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Orientadores: João Marcos Travassos Romano, Cynthia Cristina Martins Junqueira<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-17T17:05:38Z (GMT). No. of bitstreams: 1 ChinattoJunior_AdilsonWalter_M.pdf: 7887281 bytes, checksum: 23d4e34e4a2b77a46e1707773d7b5fdf (MD5) Previous issue date: 2011<br>Resumo: O Processamento Largamente Linear, desenvolvido durante a década de 1990, tem levado a uma melhoria no desempenho de algoritmos adaptativos para determinadas situações que empregam sinais im

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8

Erdogan, Yakup. "Parametric Study And Design Of Vivaldi Antennas And Arrays." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610492/index.pdf.

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In this thesis, parametric study and design of Vivaldi antennas and arrays are studied. The parameters of single element antennas and arrays are investigated regarding their effects on the design. The return loss responses and radiation patterns are considered in the parametric study. The results of simulations realized using Ansoft HFSS, a high frequency electromagnetic field simulation program, are shown and discussed. Two different Vivaldi antennas operating in 8.5-10.5 GHz frequency band with return loss responses better than 15 dB are designed based on the results of parametric study. St

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9

Al, Khambashi Majid S. "Analysis and solutions for RFID tag and RFID reader deployment in wireless communications applications. Simulation and measurement of linear and circular polarised RFID tag and reader antennas and analysing the tags radiation efficiency when operated close to the human body." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/6340.

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The aim of this study is to analysis, investigate and find out the solutions for the problems associated with the implementations of antennas RFID Reader and Tag for various applications. In particular, the efficiency of the RFID reader antenna and the detection range of the RFID tag antenna, subject to a small and compact antenna¿s design configuration have been studied. The present work has been addressed directly to reduce the cost, size and increase the detection range and communication reliability of the RFID framework antennas. Furthermore, the modelling concept of RFID passive ta

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10

Sumanam, Satya Parthiva Sri. "A Conductor Backed, Coplanar Waveguide Fed, Linear Array Comprised of Bowtie Antennas for a Varactor Tuned Radiation Pattern." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1470346770.

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11

Al, Khambashi Majid Salim. "Analysis and solutions for RFID tag and RFID reader deployment in wireless communications applications : simulation and measurement of linear and circular polarised RFID tag and reader antennas and analysing the tag's radiation efficiency when operated close to the human body." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/6340.

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The aim of this study is to analysis, investigate and find out the solutions for the problems associated with the implementations of antennas RFID Reader and Tag for various applications. In particular, the efficiency of the RFID reader antenna and the detection range of the RFID tag antenna, subject to a small and compact antenna's design configuration have been studied. The present work has been addressed directly to reduce the cost, size and increase the detection range and communication reliability of the RFID framework antennas. Furthermore, the modelling concept of RFID passive tags moun

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12

Xing, Chengwen, and 邢成文. "Linear minimum mean-square-error transceiver design for amplify-and-forward multiple antenna relaying systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44769738.

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13

Mkondweni, Ncedo Sandiso. "Design and implementation of linear robust networked control systems." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/1195.

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Thesis submitted in fulfilment of the requirements for the degree Doctor of Technology: Electrical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology, 2013<br>Networked Control Systems is a control system where the plant and the controller exchange information via a shared communication network and the network is considered as part of the closed loop control system. Unfortunately the network introduces network induced random varying time delays and data packet loss amongst the communication network imperfections. The network delays are considered to be bet

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14

Aqbi, Sadiq [Verfasser], Madhukar [Akademischer Betreuer] Chandra, Madhukar [Gutachter] Chandra, and Ian Andrew [Gutachter] Glover. "Improving the Performance of Dual Linear Polarization Antennas with Metamaterial Structures / Sadiq Aqbi ; Gutachter: Madhukar Chandra, Ian Andrew Glover ; Betreuer: Madhukar Chandra." Chemnitz : Universitätsbibliothek Chemnitz, 2018. http://d-nb.info/121464984X/34.

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15

Щербина, Ольга Алімівна, Ольга Алимовна Щербина та Olga Shcherbyna. "Методологія побудови антенних систем радіомоніторингу з фільтрацією та придушенням завад". Thesis, Національний авіаційний університет, 2021. https://er.nau.edu.ua/handle/NAU/52195.

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У роботі розроблено методологію побудови малоелементних антенних систем радіомоніторингу з розширеними функціональними можливостями, яка охоплює методи компенсації та адаптації для придушення та фільтрації завадового випромінювання. Наведені складові методології надають можливість підвищувати ефективність антенних систем радіомоніторингу в процесі вимірювання основних характеристик досліджуваної електромагнітної хвилі під час дії на систему завадового випромінювання на частоті близькій до частоти корисного сигналу.За допомогою розробленої методології побудови антенних решіток з пристро

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16

Lardies, Joseph. "Etude d'antennes acoustiques a directivite constante sur une large bande." Toulouse 3, 1987. http://www.theses.fr/1987TOU30214.

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Cette etude porte sur la conception et la realisation d'antennes acoustiques a largeur de faisceau constante sur une large bande. On examine deux techniques, dont l'une est basee sur un reseau d'antennes maintenant la largeur du lobe principal constant sur plusieurs octaves, tandis que l'autre methode permet de maintenir la largeur du faisceau d'une antenne constante sur plusieurs octaves. Etude de l'estimation de la direction et de la puissance de signaux acoustiques en vue d'applications possibles

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17

Schlosser, Edson Rodrigo. "Síntese de redes lineares de antenas de microfita com diagramas de irradiação conformados para sistemas de comunicação 4G." Universidade Federal do Pampa, 2014. http://dspace.unipampa.edu.br:8080/xmlui/handle/riu/254.

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Submitted by Sandro Camargo (sandro.camargo@unipampa.edu.br) on 2015-05-09T23:05:48Z No. of bitstreams: 1 117110020.pdf: 13178438 bytes, checksum: f29a9ebb8c16cd912a974177b062c58e (MD5)<br>Made available in DSpace on 2015-05-09T23:05:48Z (GMT). No. of bitstreams: 1 117110020.pdf: 13178438 bytes, checksum: f29a9ebb8c16cd912a974177b062c58e (MD5) Previous issue date: 2014-04-04<br>Neste trabalho é apresentado um estudo de redes lineares de antenas com elementos isotrópicos e projetos em tecnologia de microfita, com diagrama de irradiação conformado e controle dos lóbulos secundários. A espe

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18

Soun, Léna. "Exaltation d’effets non linéaires dans des métasurfaces à multi-résonances accordées." Thesis, Institut polytechnique de Paris, 2020. http://www.theses.fr/2020IPPAX066.

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Les nano-antennes sont des composants nanostructurés capables de concentrer la lumière dans des volumes sub-longueur d’onde, exaltant le champ électrique selon plusieurs ordres de grandeur. Cela est particulièrement intéressant pour la génération d’effets non linéaires, qui dépendent des puissances du champ électrique incident. En effet, les effets non linéaires d’ordre 2, qui permettent les phénomènes de conversion de fréquence, comme la génération de second harmonique (SHG), ou la différence de fréquence (DFG), dépendent du carré du champ électrique. Ainsi, si l’on inclut un cristal non liné

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19

Smith, Christopher Brian. "Wideband dual-linear polarized microstrip patch antenna." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3162.

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20

Martin, Denis. "Le dipole imprime alimente par couplage electromagnetique a une ligne microruban : synthese et realisation de reseaux a lobes de rayonnement formes." Rennes, INSA, 1988. http://www.theses.fr/1988ISAR0004.

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Cette these decrit la synthese de reseaux lineaires de dipoles couples electromagnetiquement (dipoles c. E. M. ) avec prise en compte des couplages. Cette synthese est ensuite appliquee a la realisation d'un diagramme de rayonnement forme du type depression spherique

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21

Chiw, Ser Tar. "Linear transmitter with integrated power combining patch antenna." Thesis, University of Birmingham, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288872.

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22

Grbic, Anthony. "A novel leaky millimeter-wave linear slot antenna array." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ58792.pdf.

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23

PARTHASARATHY, KRISHNAN V. "MUTUAL COUPLING IN PATCH ANTENNA ARRAYS." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1148325728.

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24

Métais, Samuel. "Façonnage des ondes : de la superdirectivité à la superrésolution." Thesis, Sorbonne Paris Cité, 2019. http://www.theses.fr/2019USPCC008.

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Durant cette thèse nous nous sommes intéressés à la physique des ondes globale. En repartant de l’équation de d’Alembert, il émerge trois leviers principaux qui permettent le contrôle des ondes : contrôle sur les sources, contrôle sur les conditions aux limites, et contrôle sur le milieu de propagation lui-même. Dans un premier lieu, nous avons utilisé les propriétés d’une métasurface binaire électroniquement reconfigurable en cavité micro-ondes. Cet objet permet de contrôler le champ au sein de la cavité. Celle-ci a ensuite été ouverte, et nous avons montré que le contrôle s’étendait à l’émis

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25

Talbi, Rachid. "Modélisation et caractérisation des antennes acoustiques." Valenciennes, 1998. https://ged.uphf.fr/nuxeo/site/esupversions/c5fbce72-9310-495d-a7d8-f80e9965011b.

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L'objectif poursuivi dans ce travail est de créer un outil efficace d'aide à la conception des antennes (à une et a deux dimensions) ultrasonores haute fréquence. Dans un premier temps, des méthodes classiques de caractérisation de ces antennes ont été présentées et discutées. La qualité des images ultrasonores obtenues dépend fortement des caractéristiques des transducteurs élémentaires utilises. Dans la seconde partie, l'effet de l'amortisseur a été analysé en le considérant comme une ligne de transmission présentant des pertes. Il a été montré qu'il est possible de restreindre le maillage d

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26

Yano, Kazuto. "Study on CDMA non-linear interference cancellers with multi-antenna reception." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144502.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(情報学)<br>甲第11843号<br>情博第172号<br>新制||情||38(附属図書館)<br>23603<br>UT51-2005-K509<br>京都大学大学院情報学研究科通信情報ｼｽﾃﾑ専攻<br>(主査)教授吉田進, 教授森広芳照, 教授佐藤亨<br>学位規則第4条第1項該当

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27

Rao, Atluri Neela. "Synthesis of unequally spaced and non-uniformly excited linear antenna arrays." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61715.

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28

Crepaldi, Bruno Espinosa 1991. "Um algoritmo eficiente para o problema do posicionamento natural de antenas." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/275534.

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Orientadores: Cid Carvalho de Souza, Pedro Jussieu de Rezende<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Computação<br>Made available in DSpace on 2018-08-26T19:18:58Z (GMT). No. of bitstreams: 1 Crepaldi_BrunoEspinosa_M.pdf: 13275684 bytes, checksum: aa236e6a56dd7ed5507276017c51b8fb (MD5) Previous issue date: 2014<br>Resumo: Considerado uma variação do problema da galeria de arte, o problema do posicionamento de antenas trata do posicionamento do menor número de antenas requerido para determinar se uma pessoa está dentro ou fora da galeria. Uma antena propag

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29

Divín, Jan. "Měření směrových charakteristik antén." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218898.

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This Master’s Thesis is dealing with measuring antennas in far field. Especially with automation this measure, direction sensors made by optical mouse, Integrated Hall ICs for Linear and Off-Axis Rotary Motion Detection and remote unit this workplace, which can made communication with PC by USB. It describes the making control program for the PC.

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30

Milliner, David Louis 1981. "A low-complexity linear and iterative receiver architecture for multi-antenna communication systems." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28448.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.<br>Vita.<br>Includes bibliographical references (leaves 60-62).<br>Multi-antenna systems have been shown to significantly improve channel capacity in wireless environments. The focus of this thesis is on the design of low-complexity multi-antenna receiver architectures for communication networks and their demonstration in a real-time wireless environment. Our practical realization of an orthogonal frequency-division multi-antenna receiver is capable of several forms of linear an

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31

Laird, Daniel T. "Analysis of Covariance with Linear Regression Error Model on Antenna Control Unit Tracking." International Foundation for Telemetering, 2015. http://hdl.handle.net/10150/596393.

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ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV<br>Over the past several years DoD imposed constraints on test deliverables, requiring objective measures of test results, i.e., statistically defensible test and evaluation (SDT&E) methods and results. These constraints force the tester to employ statistical hypotheses, analyses and perhaps modeling to assess test results objectively, i.e., based on statistical metrics, probability of confidence and

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32

Nascimento, Daniel Chagas do. "Antenas para comunicações móveis." Instituto Tecnológico de Aeronáutica, 2007. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=443.

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Nesse trabalho são avaliadas antenas impressas e de microfita, linearmente e circularmente polarizadas, objetivando empregá-las em sistemas de comunicações móveis. Contrapondo a tendência usual de se utilizar laminados de microondas importados de baixas perdas, porém excessivamente caros para os padrões nacionais, optou-se pela sua substituição, sempre que possível, por material mais barato e de fabricação nacional, porém com perdas acentuadas. Para viabilizar esta opção, problemas de engenharia, como o aumento da eficiência de irradiação em materiais com perdas elevadas e técnicas de compensa

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33

Lam, Hang Yee. "Analysis of circularly and linearly polarized U-slot-excited hemispherical dielectric resonator antennas with a backing cavity /." access full-text access abstract and table of contents, 2005. http://libweb.cityu.edu.hk/cgi-bin/ezdb/thesis.pl?mphil-ee-b19886172a.pdf.

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Thesis (M.Phil.)--City University of Hong Kong, 2005.<br>"Submitted to Department of Electronic Engineering in partial fulfillment of the requirements for the degree of Master of Philosophy" Includes bibliographical references (leaves 65-68)

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34

Khoshniat, Ali. "A Linearly and Circularly Polarized Active Integrated Antenna." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/881.

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This thesis work presents a new harmonic suppression technique for microstrip patch antennas. Harmonic suppression in active integrated antennas is known as an effective method to improve the efficiency of amplifiers in transmitter side. In the proposed design, the antenna works as the radiating element and, at the same time, as the tuning load for the amplifier circuit that is directly matched to the antenna. The proposed active antenna architecture is easy to fabricate and is symmetric, so it can be conveniently mass-produced and designed to have circular polarization, which is preferred in

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35

Chan-Taw, Stephan. "Performance of linear detectors using partial decision techniques in CDMA systems with multiple antenna." Thesis, University of Ottawa (Canada), 2006. http://hdl.handle.net/10393/27615.

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Partial decision variables exploit the code diversity available in a code division multiple access system by detecting the received signal over different portions of the signaling interval to produce multiple decision intervals. Decision variables can then be weighted using adaptive filtering techniques, improving signal to interference plus noise ratio. In this thesis, we integrate the partial decision variable technique with multiple antennas to further improve performance by exploiting spatial diversity without greatly increasing the complexity of the system. Specifically, we will demonstra

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36

Staffan, Paul. "Design of an ultra-wideband microstrip antenna array with low size, weight and power." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1578437280799995.

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37

Miller, Daniel K. "Wire grid modeling of the Linearly Tapered Slot Antenna." Thesis, Monterey, California. Naval Postgraduate School, 1989. http://hdl.handle.net/10945/26339.

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38

Atie, Elie. "Modeling of high electromagnetic field confinement metamaterials for both linear and non-linear applications." Thesis, Besançon, 2016. http://www.theses.fr/2016BESA2044/document.

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Notre recherche porte sur la réponse optique des nanostructures et nous sommes certainement intéressés à la modélisation de ces structures afin d'améliorer le confinement de la lumière. Ce confinement est un des paramètres qui conduisent à l'exaltation des effets optique linéaires et non linéaires, simultanément. Notre travail est divisé en deux sections, qui présentent deux effets optiques diffèrents basées sur le confinement des champs à l’intérieur du structure. Dans la première section, la réponse optique d’une nano-antenne à ouverture en forme de nœud papillon (BNA : Bowtie nano-aperture)

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39

Hunt-Grubbe, Henry. "Element and integrated system analysis of a dual feed tuneable cavity backed linear slot antenna." Thesis, University of Bristol, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437274.

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40

Karhu, V. M. (Veli-Matti). "Simplifying the radiation pattern modeling and considering the mutual coupling in linear dipole antenna arrays." Master's thesis, University of Oulu, 2018. http://urn.fi/URN:NBN:fi:oulu-201803031294.

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This thesis presents a method for modeling the mutual coupling between antenna elements mathematically and investigate the impact of the coupling on radiation patterns in linear half-wave dipole antenna arrays. A method developed in this thesis aims at saving simulation time and achieve accurate theoretical radiation patterns, which include the impact of the mutual coupling. Utilizing the method is especially advantageous during the initial stages of the antenna array designing when the coupling between elements is examined. Mutual coupling parameters formed for various scenarios are utilized

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41

Chang, Li-Chung T. "Constant beamwidth ultrawide bandwidth linearly and dual polarized antenna design." Connect to resource, 1996. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1227214253.

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42

Montalv?o, Emanuele da Silva Rodrigues. "Implementa??o de conversor de polariza??o linear-circular para antenas de microfita usando metasuperf?cies." Universidade Federal do Rio Grande do Norte, 2016. http://repositorio.ufrn.br/handle/123456789/21139.

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Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-08-09T22:51:25Z No. of bitstreams: 1 EmanueleDaSilvaRodriguesMontalvao_TESE.pdf: 1580309 bytes, checksum: 39bf0d8e4a7d3087d516e4317b43d692 (MD5)<br>Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-10T23:27:44Z (GMT) No. of bitstreams: 1 EmanueleDaSilvaRodriguesMontalvao_TESE.pdf: 1580309 bytes, checksum: 39bf0d8e4a7d3087d516e4317b43d692 (MD5)<br>Made available in DSpace on 2016-08-10T23:27:44Z (GMT). No. of bitstreams: 1 EmanueleDaSilvaRodriguesMontalvao_TESE.pdf: 1580309 byte

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Silva, José Lucas da. "Implementação de estruturas EBG em antenas de microfitas e polarização linear-circular com metasuperfície para WLAN." PROGRAMA DE PÓS-GRADUAÇÃO EM ENGENHARIA ELÉTRICA E DE COMPUTAÇÃO, 2018. https://repositorio.ufrn.br/jspui/handle/123456789/25063.

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Submitted by Automação e Estatística (sst@bczm.ufrn.br) on 2018-04-11T20:06:39Z No. of bitstreams: 1 JoseLucasDaSilva_TESE.pdf: 3479810 bytes, checksum: 104984cc1ac3030914010d411403b0b2 (MD5)<br>Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-04-16T21:57:57Z (GMT) No. of bitstreams: 1 JoseLucasDaSilva_TESE.pdf: 3479810 bytes, checksum: 104984cc1ac3030914010d411403b0b2 (MD5)<br>Made available in DSpace on 2018-04-16T21:57:57Z (GMT). No. of bitstreams: 1 JoseLucasDaSilva_TESE.pdf: 3479810 bytes, checksum: 104984cc1ac3030914010d411403b0b2 (MD5)

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Lepkowski, Stefan. "An ultra-compact and low loss passive beamforming network integrated on chip with off chip linear array." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53599.

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The work here presents a review of beam forming architectures. As an example, the author presents an 8x8 Butler Matrix passive beam forming network including the schematic, design/modeling, operation, and simulated results. The limiting factor in traditional beam formers has been the large size dictated by transmission line based couplers. By replacing these couplers with transformer-based couplers, the matrix size is reduced substantially allowing for on chip compact integration. In the example presented, the core area, including the antenna crossover, measures 0.82mm×0.39mm (0.48% the size o

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45

Zhang, Xi. "Transceiver Design for Multiple Antenna Communication Systems with Imperfect Channel State Information." Doctoral thesis, Stockholm : Elektrotekniska system, Electrical Engineering, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4679.

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KAWAKATSU, Marcelo Nobuyuki. "Otimização de antenas lineares e planares para aplicações em sistemas de banda larga." Universidade Federal do Pará, 2009. http://repositorio.ufpa.br/jspui/handle/2011/3437.

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Submitted by Edisangela Bastos (edisangela@ufpa.br) on 2013-01-31T21:08:44Z No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_OtimizacaoAntenasLineares.pdf: 900502 bytes, checksum: a9a4cd9879a83fe826fe2618f846c352 (MD5)<br>Approved for entry into archive by Ana Rosa Silva(arosa@ufpa.br) on 2013-02-05T11:55:34Z (GMT) No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_OtimizacaoAntenasLineares.pdf: 900502 bytes, checksum: a9a4cd9879a83fe826fe2618f846c352 (MD5)<br>Made available

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Wennström, Mattias. "On MIMO Systems and Adaptive Arrays for Wireless Communication : Analysis and Practical Aspects." Doctoral thesis, Uppsala University, Signals and Systems Group, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2604.

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<p>This thesis is concerned with the use of multiple antenna elements in wireless communication over frequency non-selective radio channels. Both measurement results and theoretical analysis are presented. New transmit strategies are derived and compared to existing transmit strategies, such as beamforming and space-time block coding (STBC). It is found that the best transmission algorithm is largely dependent on the channel characteristics, such as the number of transmit and receive antennas and the existence of a line of sight component. Rayleigh fading multiple input multiple output (MIMO)

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Choi, Junsung. "Latency Study and System Design Guidelines for Cooperative LTE-DSRC Vehicle-to-Everything (V2X) Communications including Smart Antenna." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/78083.

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Vehicle-related communications are a key application to be enabled by Fifth Generation (5G) wireless systems. The communications enabled by the future Internet of Vehicles (IoV) that are connected to every wireless device are referred to as Vehicle-to-Everything (V2X) communications. A major application of V2X communication systems will be to provide emergency warnings. This thesis evaluates Long-Term Evolution (LTE) and Dedicated Short Range Communications (DSRC) in terms of service quality and latency, and provides guidelines for design of cooperative LTE-DSRC systems for V2X communications.

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Savaş, Süleyman. "Linear Algebra for Array Signal Processing on a Massively Parallel Dataflow Architecture." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-4137.

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<p>This thesis provides the deliberations about the implementation of Gentleman-Kung systolic array for QR decomposition using Givens Rotations within the context of radar signal processing. The systolic array of Givens Rotations is implemented and analysed using a massively parallel processor array (MPPA), Ambric Am2045. The tools that are dedicated to the MPPA are tested in terms of engineering efficiency. aDesigner, which is built on eclipse environment, is used for programming, simulating and performance analysing. aDesigner has been produced for A

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Savaş, Süleyman. "Linear Algebra for Array Signal Processing on a Massively Parallel Dataflow Architecture." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-2192.

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<p>This thesis provides the deliberations about the implementation of Gentleman-Kung systolic array for QR decomposition using Givens Rotations within the context of radar signal </p><p>processing. The systolic array of Givens Rotations is implemented and analysed using a massively parallel processor array (MPPA), Ambric Am2045. The tools that are dedicated to the MPPA are tested in terms of engineering efficiency. aDesigner, which is built on eclipse environment, is used for programming, simulating and performance analysing. aDesigner has been p

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