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Etude Et Optimisation Dun Nouveau Type Dantenne Coplanaire
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Book Synopsis Etude et optimisation d'un nouveau type d'antenne coplanaire by : Cyril Nicolas Decroze
Download or read book Etude et optimisation d'un nouveau type d'antenne coplanaire written by Cyril Nicolas Decroze and published by . This book was released on 2002 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce mémoire présente l'étude d'un nouveau type d'antenne coplanaire : "l'antenne fil-plaque coplanaire". La topologie uniplanaire de cet élément rayonnant, ainsi que son mode de fonctionnement basse fréquence, en font une structure très compacte qui permet de répondre aux besoins actuels d'antennes miniatures pour les télécommunications modernes. Différents développements basés sur ce concept original sont proposés, afin détendre les performances intrinsèques de l'antenne vers des dispositifs rayonnants large bande et multifonctions. D'autre part, l'antenne fil-plaque coplanaire est utilisée pour être directement intégrée dans un module de communication destiné au relevé à distance de compteurs d'énergie. Ces travaux présentent en outre les solutions technologiques envisagées pour imprimer le dispositif rayonnant à même le boîtier constituant le module de communication, ainsi que les contraintes d'encombrement auxquelles l'antenne intégrée doit répondre dans ce contexte particulier.
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.
