Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Conception Dantennes Miniatures Multi Bandes Et A Polarisation Circulaire A Base De Materiaux Ferrites Polarises
Download Conception Dantennes Miniatures Multi Bandes Et A Polarisation Circulaire A Base De Materiaux Ferrites Polarises full books in PDF, epub, and Kindle. Read online Conception Dantennes Miniatures Multi Bandes Et A Polarisation Circulaire A Base De Materiaux Ferrites Polarises ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Conception d'antennes miniatures, multi-bandes et à polarisation circulaire à base de matériaux ferrites polarisés by : Sarra Jemmeli
Download or read book Conception d'antennes miniatures, multi-bandes et à polarisation circulaire à base de matériaux ferrites polarisés written by Sarra Jemmeli and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'essor fulgurant que connaissent les systèmes de communication sans fil, depuis plusieurs décennies, a amplifié le besoin de dispositifs hyperfréquences de plus en plus performants. Les antennes jouent un rôle important dans la mise au point et l'amélioration du rendement de ces systèmes. La diversité des domaines d'application requiert de ces dispositifs qu'ils répondent à de nombreux standards de communication et donc le caractère multi-bandes est extrêmement demandé. De plus, afin d'assurer une bonne qualité de liaison entre l'émetteur et le récepteur, le rayonnement d'une onde à polarisation circulaire est souvent sollicité. Le caractère miniature de ces antennes est également essentiel afin de faciliter leur intégration et de réduire l'encombrement des systèmes. Développer des antennes combinant ces trois critères : miniaturisation, polarisation circulaire et fonctionnement multi-bandes, constitue un véritable défi. L'objectif principal de cette thèse est de tirer profit des caractéristiques d'anisotropie et de non-réciprocité des matériaux ferrites, lorsqu'ils sont soumis à un champ magnétique statique afin de concevoir des antennes répondant aux trois critères définis ci-dessus. La stratégie adoptée au cours de ces travaux consiste à établir une méthodologie complète permettant d'étudier la réponse électromagnétique d'une antenne à ferrite en fonction des caractéristiques de ces matériaux. Cette démarche repose sur une analyse modale suivie de modélisations numériques et de validations expérimentales. Les différentes contraintes rencontrées au cours de ces travaux sont discutées et des solutions appropriées sont proposées.
Book Synopsis Broadband Microstrip Antennas by : Girish Kumar
Download or read book Broadband Microstrip Antennas written by Girish Kumar and published by Artech House. This book was released on 2003 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Look to this new, cutting-edge microstrip antenna book for the first exhaustive coverage of broadband techniques, including the most up-to-date information to help you choose and design the optimum broadband microstrip antenna configurations for your applications, without sacrificing other antenna parameters. The book shows you how to take advantage of the lightweight, low volume benefits of these antennas, by providing clear explanations of the various configurations and simple design equations that help you analyze and design microstrip antennas with speed and confidence.
Book Synopsis Handbook of Microstrip Antennas by : James R. James
Download or read book Handbook of Microstrip Antennas written by James R. James and published by . This book was released on 1989 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book reviews developments in the following fields:circular microstrip antennas; microstrip patch antennas; circular polarisation and bandwidth; microstrip dipoles; multilayer and parasitic configurations; wideband flat dipole and short-circuit microstrip patch elements and arrays; numerical analysis; multiport network approach; transmission-line model; rectangular microstrip antennas; low-cost printed antennas; printed phased-array antennas; circularly polarised antenna arrays; microstrip antenna feeds; substrate technology; computer-aided design of microstrip and triplate circuits; resonant microstrip antenna elements and arrays for aerospace applications; mobile and satellite systems; conical conformal microstrip tracking antenna; and microstrip field diagnostics.
Book Synopsis Building Wireless Community Networks by : Rob Flickenger
Download or read book Building Wireless Community Networks written by Rob Flickenger and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building Wireless Community Networks is about getting people online using wireless network technology. The 802.11b standard (also known as WiFi) makes it possible to network towns, schools, neighborhoods, small business, and almost any kind of organization. All that's required is a willingness to cooperate and share resources. The first edition of this book helped thousands of people engage in community networking activities. At the time, it was impossible to predict how quickly and thoroughly WiFi would penetrate the marketplace. Today, with WiFi-enabled computers almost as common as Ethernet, it makes even more sense to take the next step and network your community using nothing but freely available radio spectrum. This book has showed many people how to make their network available, even from the park bench, how to extend high-speed Internet access into the many areas not served by DSL and cable providers, and how to build working communities and a shared though intangible network. All that's required to create an access point for high-speed Internet connection is a gateway or base station. Once that is set up, any computer with a wireless card can log onto the network and share its resources. Rob Flickenger built such a network in northern California, and continues to participate in network-building efforts. His nuts-and-bolts guide covers: Selecting the appropriate equipment Finding antenna sites, and building and installing antennas Protecting your network from inappropriate access New network monitoring tools and techniques (new) Regulations affecting wireless deployment (new) IP network administration, including DNS and IP Tunneling (new) His expertise, as well as his sense of humor and enthusiasm for the topic, makes Building Wireless Community Networks a very useful and readable book for anyone interested in wireless connectivity.
Download or read book Wireless Hacks written by Rob Flickenger and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing with the successful Hack Series, this title provides real-world working examples of how to make useful things happen with wireless equipment.
