Download or read book Multi Band Antenna for L S and X band Data written by and published by . This book was released on 2004 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book X Band Data Transmission Antenna Feed Design written by Alton Grant Dunn and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Super Multi Band Antennas written by Edward J. Shortridge and published by Dog Ear Publishing. This book was released on 2017-03-29 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two previous books titled “Super-Dipole” and “Super Max-Dipole” Antennas were written by this author, thereby introducing a completely new “Unified Broad-Banding Method”. This method primarily consists of the use of a 1/2 wavelength Dipole, which is fed with a 1/4 (or shorter) wavelength resonant line. The amount of coupling between these two components is greatly reduced and controlled to produce a wide SWR bandwidth. This Broad-Banding method is referred to as “Critically-Coupled Broad-Banding”. This new book, titled “Super Multi-Band Antennas” is a continuation of the previous book, where Broad-Banding is taken to an extreme and Dual-Band antennas can be configured either on an adjacent band or those that might have a much greater 2 to 1 frequency separation. Early chapters of this book reintroduce the “Unified Broad-Banding Method”, presenting Horizontal antennas with superb SWR bandwidths and then showing Dual-Band versions with many different band combinations from 60m on up to 450 MHz, using either wire or tubing. Single band Folded-Dipole configurations using tubing or Ladder-line/Window-line are shown to produce extremely low SWR bandwidths. Inverted “V” Dual-Band antennas, with many band combinations allow for easier antenna mounting. Both Vertical and Horizontal Single-fed, Dual-Band Quad antennas have a limited bandwidth but when each individual 1/2wL section is fed, these antennas are classified as a “Prismatic Polygon” and thereby achieve far greater bandwidth, achieving it in a totally different manner from the “Critically-Coupled” method. There are many versions of Quad, Triangular, Pentagons and Hexagon Polygon antennas and all of their Multi-radiators must be fed. Some can cover from 30 to 10m, while others can cover from 144 to 450 MHz, allowing all services within the bandwidth, including the Amateur Radio services to use these antennas. This book presents large numbers and a variety of antennas and it also provides a path of the evolution from one type of antenna to another, providing detailed performance. Many thanks again to Eugene Belton and Dale Parfitt for their dedicated hard work, which without; these books would not have been possible. Surely you will be pleased with the extent of information provided, which covers important details.
Download or read book The Telecommunications and Data Acquisition Progress Report written by and published by . This book was released on 1994 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Multiple Antenna Techniques for Pulse based Ultra wideband System written by Sudheer Vemulapalli and published by . This book was released on 2004 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indoor wireless local area networks (LAN's) and personal area networks (PAN's) have evolved very rapidly in the recent past. The indoor wireless LAN's are mainly dominated by narrow-band technologies like the IEEE 802.11a, b which are short range and provide data rates of 1 Mbps to 54 Mbps. The Bluetooth has become the standard for low-data rate WPAN's. Ultra-wideband (UWB), though an old technology, has generated a lot of interest lately to be a contender for the high data rate indoor applications. A UWB system could span multi-GHz bandwidth, which enables it to pro- vide a very high capacity. The IEEE is developing the standards for the high data rate indoor environments and the approach is tending towards multi-band UWB. This thesis studies the system architecture and error performance of pulse-based UWB systems with multiple transmitter and receiver antennas for indoor environments. Performance of space-time coded multiple antenna pulse-based UWB and space-time-frequency coded multiple-antenna pulse-based multi-band UWB are analyzed. For the multi-band system, the 7.5 GHz UWB spectrum specified by the FCC is divided into sub-bands of 528 MHz each, and multiple sub-bands can be simultaneously used for data transmission. We design codes that maximize coding and diversity gains for multiple-antenna systems over the frequency- selective UWB channels and provide detailed detection and decoding procedures. The proposed multi-antenna multi-band UWB system could dramatically increase link throughput as compared to existing schemes over non-line-of-sight (NLOS) dense multipath channels.
Download or read book Super Multi Band Antennas written by Edward Shortridge and published by Dog Ear Publishing. This book was released on 2017-03-17 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two previous books titled "Super-Dipole" and "Super Max-Dipole" Antennas were written by this author, thereby introducing a completely new "Unified Broad-Banding Method." This method primarily consists of the use of a 1/2 wavelength Dipole, which is fed with a 1/4 (or shorter) wavelength resonant line. The amount of coupling between these two components is greatly reduced and controlled to produce a wide SWR bandwidth. This Broad-Banding method is referred to as "Critically-Coupled Broad-Banding." This new book, titled "Super Multi-Band Antennas" is a continuation of the previous book, where Broad-Banding is taken to an extreme and Dual-Band antennas can be configured either on an adjacent band or those that might have a much greater 2 to 1 frequency separation. Early chapters of this book reintroduce the "Unified Broad-Banding Method," presenting Horizontal antennas with superb SWR bandwidths and then showing Dual-Band versions with many different band combinations from 60m on up to 450 MHz, using either wire or tubing. Single band Folded-Dipole configurations using tubing or Ladder-line/Window-line are shown to produce extremely low SWR bandwidths. Inverted "V" Dual-Band antennas, with many band combinations allow for easier antenna mounting. Both Vertical and Horizontal Single-fed, Dual-Band Quad antennas have a limited bandwidth but when each individual 1/2wL section is fed, these antennas are classified as a "Prismatic Polygon" and thereby achieve far greater bandwidth, achieving it in a totally different manner from the "Critically-Coupled" method. There are many versions of Quad, Triangular, Pentagons and Hexagon Polygon antennas and all of their Multi-radiators must be fed. Some can cover from 30 to 10m, while others can cover from 144 to 450 MHz, allowing all services within the bandwidth, including the Amateur Radio services to use these antennas. This book presents large numbers and a variety of antennas and it also provides a path of the evolution from one type of antenna to another, providing detailed performance. Many thanks again to Eugene Belton and Dale Parfitt for their dedicated hard work, which without; these books would not have been possible. Surely you will be pleased with the extent of information provided, which covers important details.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Methods and Data Engineering written by Vijendra Singh and published by Springer Nature. This book was released on 2020-08-19 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers selected high-quality research papers from the International Conference on Computational Methods and Data Engineering (ICMDE 2020), held at SRM University, Sonipat, Delhi-NCR, India. Focusing on cutting-edge technologies and the most dynamic areas of computational intelligence and data engineering, the respective contributions address topics including collective intelligence, intelligent transportation systems, fuzzy systems, data privacy and security, data mining, data warehousing, big data analytics, cloud computing, natural language processing, swarm intelligence, and speech processing.
Download or read book Large Antennas of the Deep Space Network written by William A. Imbriale and published by John Wiley & Sons. This book was released on 2005-02-04 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important historical look at the space program's evolvingtelecommunications systems Large Antennas of the Deep Space Network traces the development ofthe antennas of NASA's Deep Space Network (DSN) from the network'sinception in 1958 to the present. It details the evolution of thelarge parabolic dish antennas, from the initial 26-m operation atL-band (960 MHz) through the current Ka-band (32 GHz) systems.Primarily used for telecommunications, these antennas also supportradar and radio astronomy observations in the exploration of thesolar system and the universe. In addition, the author also offersthorough treatment of the analytical and measurement techniquesused in design and performance assessment. Large Antennas of the Deep Space Network represents a vitaladdition to the literature in that it includes NASA-funded researchthat significantly impacts on deep space telecommunications. Partof the prestigious JPL Deep Space Communications and NavigationSeries, it captures fundamental principles and practices developedduring decades of deep space exploration, providing informationthat will enable antenna professionals to replicate radiofrequencies and optics designs. Designed as an introduction for students in the field as well as areference for advanced practitioners, the text assumes a basicfamiliarity with engineering and mathematical concepts andtechnical terms. The Deep Space Communications and Navigation Series is authored byscientists and engineers with extensive experience in astronautics,communications, and related fields. It lays the foundation forinnovation in the areas of deep space navigation and communicationsby disseminating state-of-the-art knowledge in key technologies.
Download or read book NRL Report written by and published by . This book was released on 1979 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of Naval Radio electronics and Contributions of the Naval Research Laboratory written by Louis A. Gebhard and published by . This book was released on 1979 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Four dimensional 4D Printing written by Yusheng Shi and published by Frontiers Media SA. This book was released on 2021-11-05 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design of an X band Antenna Testing Range written by Eugene Joseph Dutkowski and published by . This book was released on 1976 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microstrip X Band Antenna Array for Direct Satellite Broadcast DSB Applications written by Thinh Thanh Le and published by . This book was released on 2004 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microwaves written by and published by . This book was released on 1969 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observation of the Earth and Its Environment written by Herbert J. Kramer and published by Springer. This book was released on 2019-01-30 with total page 1509 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is about spaceborne missions and instruments. In addition, surveys of airborne missions and of campaigns can be found on the accompanying CD-ROM in pdf-format. Compared with the 3rd edition the spaceborne part grew from about 300 to 1000 pages. The complete text - including the electronic-only chapters - contains more than 1900 pages. New chapters treat the history of Earth observation and university missions. The number of commercial Earth imaging missions has grown significantly. A chapter contains reference data and definitions. Extensive appendices provide a comprehensive glossary, acronyms and abbreviations and an index of sensors. An effort has been made to present the information in context, to point out relationships and interconnections. The book may serve as a reference and guide to all involved in the various national and international space programs: researchers and managers, service providers and data users, teachers and students.
Download or read book Weapon Systems written by and published by . This book was released on 2007 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
